diff --git a/.hgtags b/.hgtags
index 370634b..f22b566 100644
--- a/.hgtags
+++ b/.hgtags
@@ -332,3 +332,4 @@
 a947f40fb536e5b9e0aa210cf26abb430f80887a hs25-b26
 42fe530cd478744a4d12a0cbf803f0fc804bab1a jdk8-b85
 09b0d3e9ba6cdf7da07d4010d2d1df14596f6864 hs25-b27
+6d88a566d369f6a1f86912cad7d0912686b2fda1 hs25-b28
diff --git a/make/hotspot_version b/make/hotspot_version
index fe8980d..865a909 100644
--- a/make/hotspot_version
+++ b/make/hotspot_version
@@ -35,7 +35,7 @@
 
 HS_MAJOR_VER=25
 HS_MINOR_VER=0
-HS_BUILD_NUMBER=27
+HS_BUILD_NUMBER=28
 
 JDK_MAJOR_VER=1
 JDK_MINOR_VER=8
diff --git a/src/share/vm/adlc/output_c.cpp b/src/share/vm/adlc/output_c.cpp
index 36b7157..f86dd21 100644
--- a/src/share/vm/adlc/output_c.cpp
+++ b/src/share/vm/adlc/output_c.cpp
@@ -63,11 +63,10 @@
     RegDef *reg_def = NULL;
     RegDef *next = NULL;
     registers->reset_RegDefs();
-    for( reg_def = registers->iter_RegDefs(); reg_def != NULL; reg_def = next ) {
+    for (reg_def = registers->iter_RegDefs(); reg_def != NULL; reg_def = next) {
       next = registers->iter_RegDefs();
       const char *comma = (next != NULL) ? "," : " // no trailing comma";
-      fprintf(fp,"  \"%s\"%s\n",
-                 reg_def->_regname, comma );
+      fprintf(fp,"  \"%s\"%s\n", reg_def->_regname, comma);
     }
 
     // Finish defining enumeration
@@ -79,10 +78,10 @@
     reg_def = NULL;
     next = NULL;
     registers->reset_RegDefs();
-    for( reg_def = registers->iter_RegDefs(); reg_def != NULL; reg_def = next ) {
+    for (reg_def = registers->iter_RegDefs(); reg_def != NULL; reg_def = next) {
       next = registers->iter_RegDefs();
       const char *comma = (next != NULL) ? "," : " // no trailing comma";
-      fprintf(fp,"\t%s%s\n", reg_def->_concrete, comma );
+      fprintf(fp,"\t%s%s\n", reg_def->_concrete, comma);
     }
     // Finish defining array
     fprintf(fp,"\t};\n");
@@ -104,19 +103,17 @@
     RegDef *reg_def = NULL;
     RegDef *next    = NULL;
     registers->reset_RegDefs();
-    for( reg_def = registers->iter_RegDefs(); reg_def != NULL; reg_def = next ) {
+    for (reg_def = registers->iter_RegDefs(); reg_def != NULL; reg_def = next) {
       next = registers->iter_RegDefs();
       const char* register_encode = reg_def->register_encode();
       const char *comma = (next != NULL) ? "," : " // no trailing comma";
       int encval;
       if (!ADLParser::is_int_token(register_encode, encval)) {
-        fprintf(fp,"  %s%s  // %s\n",
-                register_encode, comma, reg_def->_regname );
+        fprintf(fp,"  %s%s  // %s\n", register_encode, comma, reg_def->_regname);
       } else {
         // Output known constants in hex char format (backward compatibility).
         assert(encval < 256, "Exceeded supported width for register encoding");
-        fprintf(fp,"  (unsigned char)'\\x%X'%s  // %s\n",
-                encval,          comma, reg_def->_regname );
+        fprintf(fp,"  (unsigned char)'\\x%X'%s  // %s\n", encval, comma, reg_def->_regname);
       }
     }
     // Finish defining enumeration
@@ -133,9 +130,10 @@
     fprintf(fp,"// Enumeration of register class names\n");
     fprintf(fp, "enum machRegisterClass {\n");
     registers->_rclasses.reset();
-    for( const char *class_name = NULL;
-         (class_name = registers->_rclasses.iter()) != NULL; ) {
-      fprintf(fp,"  %s,\n", toUpper( class_name ));
+    for (const char *class_name = NULL; (class_name = registers->_rclasses.iter()) != NULL;) {
+      const char * class_name_to_upper = toUpper(class_name);
+      fprintf(fp,"  %s,\n", class_name_to_upper);
+      delete[] class_name_to_upper;
     }
     // Finish defining enumeration
     fprintf(fp, "  _last_Mach_Reg_Class\n");
@@ -148,7 +146,7 @@
 void ArchDesc::declare_register_masks(FILE *fp_hpp) {
   const char  *rc_name;
 
-  if( _register ) {
+  if (_register) {
     // Build enumeration of user-defined register classes.
     defineRegClassEnum(fp_hpp, _register);
 
@@ -156,24 +154,27 @@
     fprintf(fp_hpp,"\n");
     fprintf(fp_hpp,"// Register masks, one for each register class.\n");
     _register->_rclasses.reset();
-    for( rc_name = NULL;
-         (rc_name = _register->_rclasses.iter()) != NULL; ) {
-      const char *prefix    = "";
-      RegClass   *reg_class = _register->getRegClass(rc_name);
-      assert( reg_class, "Using an undefined register class");
+    for (rc_name = NULL; (rc_name = _register->_rclasses.iter()) != NULL;) {
+      const char *prefix = "";
+      RegClass *reg_class = _register->getRegClass(rc_name);
+      assert(reg_class, "Using an undefined register class");
+
+      const char* rc_name_to_upper = toUpper(rc_name);
 
       if (reg_class->_user_defined == NULL) {
-        fprintf(fp_hpp, "extern const RegMask _%s%s_mask;\n", prefix, toUpper( rc_name ) );
-        fprintf(fp_hpp, "inline const RegMask &%s%s_mask() { return _%s%s_mask; }\n", prefix, toUpper( rc_name ), prefix, toUpper( rc_name ));
+        fprintf(fp_hpp, "extern const RegMask _%s%s_mask;\n", prefix,  rc_name_to_upper);
+        fprintf(fp_hpp, "inline const RegMask &%s%s_mask() { return _%s%s_mask; }\n", prefix, rc_name_to_upper, prefix, rc_name_to_upper);
       } else {
-        fprintf(fp_hpp, "inline const RegMask &%s%s_mask() { %s }\n", prefix, toUpper( rc_name ), reg_class->_user_defined);
+        fprintf(fp_hpp, "inline const RegMask &%s%s_mask() { %s }\n", prefix, rc_name_to_upper, reg_class->_user_defined);
       }
 
-      if( reg_class->_stack_or_reg ) {
+      if (reg_class->_stack_or_reg) {
         assert(reg_class->_user_defined == NULL, "no user defined reg class here");
-        fprintf(fp_hpp, "extern const RegMask _%sSTACK_OR_%s_mask;\n", prefix, toUpper( rc_name ) );
-        fprintf(fp_hpp, "inline const RegMask &%sSTACK_OR_%s_mask() { return _%sSTACK_OR_%s_mask; }\n", prefix, toUpper( rc_name ), prefix, toUpper( rc_name ) );
+        fprintf(fp_hpp, "extern const RegMask _%sSTACK_OR_%s_mask;\n", prefix, rc_name_to_upper);
+        fprintf(fp_hpp, "inline const RegMask &%sSTACK_OR_%s_mask() { return _%sSTACK_OR_%s_mask; }\n", prefix, rc_name_to_upper, prefix, rc_name_to_upper);
       }
+      delete[] rc_name_to_upper;
+
     }
   }
 }
@@ -183,34 +184,41 @@
 void ArchDesc::build_register_masks(FILE *fp_cpp) {
   const char  *rc_name;
 
-  if( _register ) {
+  if (_register) {
     // Generate a list of register masks, one for each class.
     fprintf(fp_cpp,"\n");
     fprintf(fp_cpp,"// Register masks, one for each register class.\n");
     _register->_rclasses.reset();
-    for( rc_name = NULL;
-         (rc_name = _register->_rclasses.iter()) != NULL; ) {
-      const char *prefix    = "";
-      RegClass   *reg_class = _register->getRegClass(rc_name);
-      assert( reg_class, "Using an undefined register class");
+    for (rc_name = NULL; (rc_name = _register->_rclasses.iter()) != NULL;) {
+      const char *prefix = "";
+      RegClass *reg_class = _register->getRegClass(rc_name);
+      assert(reg_class, "Using an undefined register class");
 
-      if (reg_class->_user_defined != NULL) continue;
+      if (reg_class->_user_defined != NULL) {
+        continue;
+      }
 
       int len = RegisterForm::RegMask_Size();
-      fprintf(fp_cpp, "const RegMask _%s%s_mask(", prefix, toUpper( rc_name ) );
-      { int i;
-        for( i = 0; i < len-1; i++ )
-          fprintf(fp_cpp," 0x%x,",reg_class->regs_in_word(i,false));
-        fprintf(fp_cpp," 0x%x );\n",reg_class->regs_in_word(i,false));
+      const char* rc_name_to_upper = toUpper(rc_name);
+      fprintf(fp_cpp, "const RegMask _%s%s_mask(", prefix, rc_name_to_upper);
+
+      {
+        int i;
+        for(i = 0; i < len - 1; i++) {
+          fprintf(fp_cpp," 0x%x,", reg_class->regs_in_word(i, false));
+        }
+        fprintf(fp_cpp," 0x%x );\n", reg_class->regs_in_word(i, false));
       }
 
-      if( reg_class->_stack_or_reg ) {
+      if (reg_class->_stack_or_reg) {
         int i;
-        fprintf(fp_cpp, "const RegMask _%sSTACK_OR_%s_mask(", prefix, toUpper( rc_name ) );
-        for( i = 0; i < len-1; i++ )
-          fprintf(fp_cpp," 0x%x,",reg_class->regs_in_word(i,true));
-        fprintf(fp_cpp," 0x%x );\n",reg_class->regs_in_word(i,true));
+        fprintf(fp_cpp, "const RegMask _%sSTACK_OR_%s_mask(", prefix, rc_name_to_upper);
+        for(i = 0; i < len - 1; i++) {
+          fprintf(fp_cpp," 0x%x,",reg_class->regs_in_word(i, true));
+        }
+        fprintf(fp_cpp," 0x%x );\n",reg_class->regs_in_word(i, true));
       }
+      delete[] rc_name_to_upper;
     }
   }
 }
@@ -2676,7 +2684,9 @@
       if (strcmp(first_reg_class, "stack_slots") == 0) {
         fprintf(fp,"  return &(Compile::current()->FIRST_STACK_mask());\n");
       } else {
-        fprintf(fp,"  return &%s_mask();\n", toUpper(first_reg_class));
+        const char* first_reg_class_to_upper = toUpper(first_reg_class);
+        fprintf(fp,"  return &%s_mask();\n", first_reg_class_to_upper);
+        delete[] first_reg_class_to_upper;
       }
     } else {
       // Build a switch statement to return the desired mask.
@@ -2688,7 +2698,9 @@
         if( !strcmp(reg_class, "stack_slots") ) {
           fprintf(fp, "  case %d: return &(Compile::current()->FIRST_STACK_mask());\n", index);
         } else {
-          fprintf(fp, "  case %d: return &%s_mask();\n", index, toUpper(reg_class));
+          const char* reg_class_to_upper = toUpper(reg_class);
+          fprintf(fp, "  case %d: return &%s_mask();\n", index, reg_class_to_upper);
+          delete[] reg_class_to_upper;
         }
       }
       fprintf(fp,"  }\n");
diff --git a/src/share/vm/adlc/output_h.cpp b/src/share/vm/adlc/output_h.cpp
index bf538ba..3fdaf39 100644
--- a/src/share/vm/adlc/output_h.cpp
+++ b/src/share/vm/adlc/output_h.cpp
@@ -2069,9 +2069,21 @@
   void closing()     { fprintf(_cpp, "  _LAST_MACH_OPER\n");
                        OutputMap::closing();
   }
-  void map(OpClassForm &opc)  { fprintf(_cpp, "  %s", _AD.machOperEnum(opc._ident) ); }
-  void map(OperandForm &oper) { fprintf(_cpp, "  %s", _AD.machOperEnum(oper._ident) ); }
-  void map(char        *name) { fprintf(_cpp, "  %s", _AD.machOperEnum(name)); }
+  void map(OpClassForm &opc)  {
+    const char* opc_ident_to_upper = _AD.machOperEnum(opc._ident);
+    fprintf(_cpp, "  %s", opc_ident_to_upper);
+    delete[] opc_ident_to_upper;
+  }
+  void map(OperandForm &oper) {
+    const char* oper_ident_to_upper = _AD.machOperEnum(oper._ident);
+    fprintf(_cpp, "  %s", oper_ident_to_upper);
+    delete[] oper_ident_to_upper;
+  }
+  void map(char *name) {
+    const char* name_to_upper = _AD.machOperEnum(name);
+    fprintf(_cpp, "  %s", name_to_upper);
+    delete[] name_to_upper;
+  }
 
   bool do_instructions()      { return false; }
   void map(InstructForm &inst){ assert( false, "ShouldNotCallThis()"); }
diff --git a/src/share/vm/c1/c1_ValueMap.cpp b/src/share/vm/c1/c1_ValueMap.cpp
index fb9b931..370afe4 100644
--- a/src/share/vm/c1/c1_ValueMap.cpp
+++ b/src/share/vm/c1/c1_ValueMap.cpp
@@ -316,6 +316,7 @@
   ShortLoopOptimizer*   _short_loop_optimizer;
   Instruction*          _insertion_point;
   ValueStack *          _state;
+  bool                  _insert_is_pred;
 
   void set_invariant(Value v) const    { _gvn->set_processed(v); }
   bool is_invariant(Value v) const     { return _gvn->is_processed(v); }
@@ -339,6 +340,7 @@
 
   assert(insertion_block->end()->as_Base() == NULL, "cannot insert into entry block");
   _insertion_point = insertion_block->end()->prev();
+  _insert_is_pred = loop_header->is_predecessor(insertion_block);
 
   BlockEnd *block_end = insertion_block->end();
   _state = block_end->state_before();
@@ -379,13 +381,13 @@
     } else if (cur->as_LoadField() != NULL) {
       LoadField* lf = (LoadField*)cur;
       // deoptimizes on NullPointerException
-      cur_invariant = !lf->needs_patching() && !lf->field()->is_volatile() && !_short_loop_optimizer->has_field_store(lf->field()->type()->basic_type()) && is_invariant(lf->obj());
+      cur_invariant = !lf->needs_patching() && !lf->field()->is_volatile() && !_short_loop_optimizer->has_field_store(lf->field()->type()->basic_type()) && is_invariant(lf->obj()) && _insert_is_pred;
     } else if (cur->as_ArrayLength() != NULL) {
       ArrayLength *length = cur->as_ArrayLength();
       cur_invariant = is_invariant(length->array());
     } else if (cur->as_LoadIndexed() != NULL) {
       LoadIndexed *li = (LoadIndexed *)cur->as_LoadIndexed();
-      cur_invariant = !_short_loop_optimizer->has_indexed_store(as_BasicType(cur->type())) && is_invariant(li->array()) && is_invariant(li->index());
+      cur_invariant = !_short_loop_optimizer->has_indexed_store(as_BasicType(cur->type())) && is_invariant(li->array()) && is_invariant(li->index()) && _insert_is_pred;
     }
 
     if (cur_invariant) {
diff --git a/src/share/vm/classfile/classFileParser.cpp b/src/share/vm/classfile/classFileParser.cpp
index c18e112..ad11f20 100644
--- a/src/share/vm/classfile/classFileParser.cpp
+++ b/src/share/vm/classfile/classFileParser.cpp
@@ -1723,9 +1723,6 @@
       } else {
         coll->set_contended_group(0); // default contended group
       }
-      coll->set_contended(true);
-    } else {
-      coll->set_contended(false);
     }
   }
 }
diff --git a/src/share/vm/classfile/classFileParser.hpp b/src/share/vm/classfile/classFileParser.hpp
index 3d60469..2184405 100644
--- a/src/share/vm/classfile/classFileParser.hpp
+++ b/src/share/vm/classfile/classFileParser.hpp
@@ -150,7 +150,6 @@
     void set_contended_group(u2 group) { _contended_group = group; }
     u2 contended_group() { return _contended_group; }
 
-    void set_contended(bool contended) { set_annotation(_sun_misc_Contended); }
     bool is_contended() { return has_annotation(_sun_misc_Contended); }
   };
 
diff --git a/src/share/vm/classfile/classLoaderData.cpp b/src/share/vm/classfile/classLoaderData.cpp
index b680574..e20de3c 100644
--- a/src/share/vm/classfile/classLoaderData.cpp
+++ b/src/share/vm/classfile/classLoaderData.cpp
@@ -70,15 +70,19 @@
   _is_anonymous(is_anonymous), _keep_alive(is_anonymous), // initially
   _metaspace(NULL), _unloading(false), _klasses(NULL),
   _claimed(0), _jmethod_ids(NULL), _handles(NULL), _deallocate_list(NULL),
-  _next(NULL), _dependencies(NULL),
+  _next(NULL), _dependencies(),
   _metaspace_lock(new Mutex(Monitor::leaf+1, "Metaspace allocation lock", true)) {
     // empty
 }
 
 void ClassLoaderData::init_dependencies(TRAPS) {
+  _dependencies.init(CHECK);
+}
+
+void ClassLoaderData::Dependencies::init(TRAPS) {
   // Create empty dependencies array to add to. CMS requires this to be
   // an oop so that it can track additions via card marks.  We think.
-  _dependencies = (oop)oopFactory::new_objectArray(2, CHECK);
+  _list_head = oopFactory::new_objectArray(2, CHECK);
 }
 
 bool ClassLoaderData::claim() {
@@ -95,13 +99,17 @@
   }
 
   f->do_oop(&_class_loader);
-  f->do_oop(&_dependencies);
+  _dependencies.oops_do(f);
   _handles->oops_do(f);
   if (klass_closure != NULL) {
     classes_do(klass_closure);
   }
 }
 
+void ClassLoaderData::Dependencies::oops_do(OopClosure* f) {
+  f->do_oop((oop*)&_list_head);
+}
+
 void ClassLoaderData::classes_do(KlassClosure* klass_closure) {
   for (Klass* k = _klasses; k != NULL; k = k->next_link()) {
     klass_closure->do_klass(k);
@@ -154,14 +162,14 @@
   // It's a dependency we won't find through GC, add it. This is relatively rare
   // Must handle over GC point.
   Handle dependency(THREAD, to);
-  from_cld->add_dependency(dependency, CHECK);
+  from_cld->_dependencies.add(dependency, CHECK);
 }
 
 
-void ClassLoaderData::add_dependency(Handle dependency, TRAPS) {
+void ClassLoaderData::Dependencies::add(Handle dependency, TRAPS) {
   // Check first if this dependency is already in the list.
   // Save a pointer to the last to add to under the lock.
-  objArrayOop ok = (objArrayOop)_dependencies;
+  objArrayOop ok = _list_head;
   objArrayOop last = NULL;
   while (ok != NULL) {
     last = ok;
@@ -184,16 +192,17 @@
   objArrayHandle new_dependency(THREAD, deps);
 
   // Add the dependency under lock
-  locked_add_dependency(last_handle, new_dependency);
+  locked_add(last_handle, new_dependency, THREAD);
 }
 
-void ClassLoaderData::locked_add_dependency(objArrayHandle last_handle,
-                                            objArrayHandle new_dependency) {
+void ClassLoaderData::Dependencies::locked_add(objArrayHandle last_handle,
+                                               objArrayHandle new_dependency,
+                                               Thread* THREAD) {
 
   // Have to lock and put the new dependency on the end of the dependency
   // array so the card mark for CMS sees that this dependency is new.
   // Can probably do this lock free with some effort.
-  MutexLockerEx ml(metaspace_lock(),  Mutex::_no_safepoint_check_flag);
+  ObjectLocker ol(Handle(THREAD, _list_head), THREAD);
 
   oop loader_or_mirror = new_dependency->obj_at(0);
 
diff --git a/src/share/vm/classfile/classLoaderData.hpp b/src/share/vm/classfile/classLoaderData.hpp
index 6c8906b..e631518 100644
--- a/src/share/vm/classfile/classLoaderData.hpp
+++ b/src/share/vm/classfile/classLoaderData.hpp
@@ -93,6 +93,18 @@
 class ClassLoaderData : public CHeapObj<mtClass> {
   friend class VMStructs;
  private:
+  class Dependencies VALUE_OBJ_CLASS_SPEC {
+    objArrayOop _list_head;
+    void locked_add(objArrayHandle last,
+                    objArrayHandle new_dependency,
+                    Thread* THREAD);
+   public:
+    Dependencies() : _list_head(NULL) {}
+    void add(Handle dependency, TRAPS);
+    void init(TRAPS);
+    void oops_do(OopClosure* f);
+  };
+
   friend class ClassLoaderDataGraph;
   friend class ClassLoaderDataGraphMetaspaceIterator;
   friend class MetaDataFactory;
@@ -100,10 +112,11 @@
 
   static ClassLoaderData * _the_null_class_loader_data;
 
-  oop _class_loader;       // oop used to uniquely identify a class loader
-                           // class loader or a canonical class path
-  oop _dependencies;       // oop to hold dependencies from this class loader
-                           // data to others.
+  oop _class_loader;          // oop used to uniquely identify a class loader
+                              // class loader or a canonical class path
+  Dependencies _dependencies; // holds dependencies from this class loader
+                              // data to others.
+
   Metaspace * _metaspace;  // Meta-space where meta-data defined by the
                            // classes in the class loader are allocated.
   Mutex* _metaspace_lock;  // Locks the metaspace for allocations and setup.
@@ -134,9 +147,6 @@
   static Metaspace* _ro_metaspace;
   static Metaspace* _rw_metaspace;
 
-  void add_dependency(Handle dependency, TRAPS);
-  void locked_add_dependency(objArrayHandle last, objArrayHandle new_dependency);
-
   void set_next(ClassLoaderData* next) { _next = next; }
   ClassLoaderData* next() const        { return _next; }
 
diff --git a/src/share/vm/classfile/systemDictionary.cpp b/src/share/vm/classfile/systemDictionary.cpp
index 42571b6..3985049 100644
--- a/src/share/vm/classfile/systemDictionary.cpp
+++ b/src/share/vm/classfile/systemDictionary.cpp
@@ -1592,9 +1592,10 @@
 // Used for assertions and verification only
 Klass* SystemDictionary::find_class(Symbol* class_name, ClassLoaderData* loader_data) {
   #ifndef ASSERT
-  guarantee(VerifyBeforeGC   ||
-            VerifyDuringGC   ||
-            VerifyBeforeExit ||
+  guarantee(VerifyBeforeGC      ||
+            VerifyDuringGC      ||
+            VerifyBeforeExit    ||
+            VerifyDuringStartup ||
             VerifyAfterGC, "too expensive");
   #endif
   assert_locked_or_safepoint(SystemDictionary_lock);
diff --git a/src/share/vm/compiler/compileBroker.cpp b/src/share/vm/compiler/compileBroker.cpp
index 63207d0..de3df50 100644
--- a/src/share/vm/compiler/compileBroker.cpp
+++ b/src/share/vm/compiler/compileBroker.cpp
@@ -1206,11 +1206,8 @@
   assert(osr_bci == InvocationEntryBci || (0 <= osr_bci && osr_bci < method->code_size()), "bci out of range");
   assert(!method->is_abstract() && (osr_bci == InvocationEntryBci || !method->is_native()), "cannot compile abstract/native methods");
   assert(!method->method_holder()->is_not_initialized(), "method holder must be initialized");
-
-  if (!TieredCompilation) {
-    comp_level = CompLevel_highest_tier;
-  }
-
+  // allow any levels for WhiteBox
+  assert(WhiteBoxAPI || TieredCompilation || comp_level == CompLevel_highest_tier, "only CompLevel_highest_tier must be used in non-tiered");
   // return quickly if possible
 
   // lock, make sure that the compilation
diff --git a/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp b/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp
index df6aabb..c609f10 100644
--- a/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp
+++ b/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp
@@ -48,6 +48,7 @@
 #include "memory/iterator.hpp"
 #include "memory/referencePolicy.hpp"
 #include "memory/resourceArea.hpp"
+#include "memory/tenuredGeneration.hpp"
 #include "oops/oop.inline.hpp"
 #include "prims/jvmtiExport.hpp"
 #include "runtime/globals_extension.hpp"
@@ -916,7 +917,31 @@
     return;
   }
 
-  size_t expand_bytes = 0;
+  // Compute some numbers about the state of the heap.
+  const size_t used_after_gc = used();
+  const size_t capacity_after_gc = capacity();
+
+  CardGeneration::compute_new_size();
+
+  // Reset again after a possible resizing
+  cmsSpace()->reset_after_compaction();
+
+  assert(used() == used_after_gc && used_after_gc <= capacity(),
+         err_msg("used: " SIZE_FORMAT " used_after_gc: " SIZE_FORMAT
+         " capacity: " SIZE_FORMAT, used(), used_after_gc, capacity()));
+}
+
+void ConcurrentMarkSweepGeneration::compute_new_size_free_list() {
+  assert_locked_or_safepoint(Heap_lock);
+
+  // If incremental collection failed, we just want to expand
+  // to the limit.
+  if (incremental_collection_failed()) {
+    clear_incremental_collection_failed();
+    grow_to_reserved();
+    return;
+  }
+
   double free_percentage = ((double) free()) / capacity();
   double desired_free_percentage = (double) MinHeapFreeRatio / 100;
   double maximum_free_percentage = (double) MaxHeapFreeRatio / 100;
@@ -925,9 +950,7 @@
   if (free_percentage < desired_free_percentage) {
     size_t desired_capacity = (size_t)(used() / ((double) 1 - desired_free_percentage));
     assert(desired_capacity >= capacity(), "invalid expansion size");
-    expand_bytes = MAX2(desired_capacity - capacity(), MinHeapDeltaBytes);
-  }
-  if (expand_bytes > 0) {
+    size_t expand_bytes = MAX2(desired_capacity - capacity(), MinHeapDeltaBytes);
     if (PrintGCDetails && Verbose) {
       size_t desired_capacity = (size_t)(used() / ((double) 1 - desired_free_percentage));
       gclog_or_tty->print_cr("\nFrom compute_new_size: ");
@@ -961,6 +984,14 @@
       gclog_or_tty->print_cr("  Expanded free fraction %f",
         ((double) free()) / capacity());
     }
+  } else {
+    size_t desired_capacity = (size_t)(used() / ((double) 1 - desired_free_percentage));
+    assert(desired_capacity <= capacity(), "invalid expansion size");
+    size_t shrink_bytes = capacity() - desired_capacity;
+    // Don't shrink unless the delta is greater than the minimum shrink we want
+    if (shrink_bytes >= MinHeapDeltaBytes) {
+      shrink_free_list_by(shrink_bytes);
+    }
   }
 }
 
@@ -1872,7 +1903,7 @@
   assert_locked_or_safepoint(Heap_lock);
   FreelistLocker z(this);
   MetaspaceGC::compute_new_size();
-  _cmsGen->compute_new_size();
+  _cmsGen->compute_new_size_free_list();
 }
 
 // A work method used by foreground collection to determine
@@ -2601,6 +2632,10 @@
 }
 
 void ConcurrentMarkSweepGeneration::gc_prologue(bool full) {
+
+  _capacity_at_prologue = capacity();
+  _used_at_prologue = used();
+
   // Delegate to CMScollector which knows how to coordinate between
   // this and any other CMS generations that it is responsible for
   // collecting.
@@ -2774,6 +2809,23 @@
   }
 }
 
+
+void
+CMSCollector::print_on_error(outputStream* st) {
+  CMSCollector* collector = ConcurrentMarkSweepGeneration::_collector;
+  if (collector != NULL) {
+    CMSBitMap* bitmap = &collector->_markBitMap;
+    st->print_cr("Marking Bits: (CMSBitMap*) " PTR_FORMAT, bitmap);
+    bitmap->print_on_error(st, " Bits: ");
+
+    st->cr();
+
+    CMSBitMap* mut_bitmap = &collector->_modUnionTable;
+    st->print_cr("Mod Union Table: (CMSBitMap*) " PTR_FORMAT, mut_bitmap);
+    mut_bitmap->print_on_error(st, " Bits: ");
+  }
+}
+
 ////////////////////////////////////////////////////////
 // CMS Verification Support
 ////////////////////////////////////////////////////////
@@ -3300,6 +3352,26 @@
 }
 
 
+void ConcurrentMarkSweepGeneration::shrink_by(size_t bytes) {
+  assert_locked_or_safepoint(ExpandHeap_lock);
+  // Shrink committed space
+  _virtual_space.shrink_by(bytes);
+  // Shrink space; this also shrinks the space's BOT
+  _cmsSpace->set_end((HeapWord*) _virtual_space.high());
+  size_t new_word_size = heap_word_size(_cmsSpace->capacity());
+  // Shrink the shared block offset array
+  _bts->resize(new_word_size);
+  MemRegion mr(_cmsSpace->bottom(), new_word_size);
+  // Shrink the card table
+  Universe::heap()->barrier_set()->resize_covered_region(mr);
+
+  if (Verbose && PrintGC) {
+    size_t new_mem_size = _virtual_space.committed_size();
+    size_t old_mem_size = new_mem_size + bytes;
+    gclog_or_tty->print_cr("Shrinking %s from " SIZE_FORMAT "K to " SIZE_FORMAT "K",
+                  name(), old_mem_size/K, new_mem_size/K);
+  }
+}
 
 void ConcurrentMarkSweepGeneration::shrink(size_t bytes) {
   assert_locked_or_safepoint(Heap_lock);
@@ -3351,7 +3423,7 @@
   return success;
 }
 
-void ConcurrentMarkSweepGeneration::shrink_by(size_t bytes) {
+void ConcurrentMarkSweepGeneration::shrink_free_list_by(size_t bytes) {
   assert_locked_or_safepoint(Heap_lock);
   assert_lock_strong(freelistLock());
   // XXX Fix when compaction is implemented.
@@ -6476,6 +6548,10 @@
   }
 }
 
+void CMSBitMap::print_on_error(outputStream* st, const char* prefix) const {
+  _bm.print_on_error(st, prefix);
+}
+
 #ifndef PRODUCT
 void CMSBitMap::assert_locked() const {
   CMSLockVerifier::assert_locked(lock());
@@ -9074,51 +9150,6 @@
   }
 }
 
-// The desired expansion delta is computed so that:
-// . desired free percentage or greater is used
-void ASConcurrentMarkSweepGeneration::compute_new_size() {
-  assert_locked_or_safepoint(Heap_lock);
-
-  GenCollectedHeap* gch = (GenCollectedHeap*) GenCollectedHeap::heap();
-
-  // If incremental collection failed, we just want to expand
-  // to the limit.
-  if (incremental_collection_failed()) {
-    clear_incremental_collection_failed();
-    grow_to_reserved();
-    return;
-  }
-
-  assert(UseAdaptiveSizePolicy, "Should be using adaptive sizing");
-
-  assert(gch->kind() == CollectedHeap::GenCollectedHeap,
-    "Wrong type of heap");
-  int prev_level = level() - 1;
-  assert(prev_level >= 0, "The cms generation is the lowest generation");
-  Generation* prev_gen = gch->get_gen(prev_level);
-  assert(prev_gen->kind() == Generation::ASParNew,
-    "Wrong type of young generation");
-  ParNewGeneration* younger_gen = (ParNewGeneration*) prev_gen;
-  size_t cur_eden = younger_gen->eden()->capacity();
-  CMSAdaptiveSizePolicy* size_policy = cms_size_policy();
-  size_t cur_promo = free();
-  size_policy->compute_tenured_generation_free_space(cur_promo,
-                                                       max_available(),
-                                                       cur_eden);
-  resize(cur_promo, size_policy->promo_size());
-
-  // Record the new size of the space in the cms generation
-  // that is available for promotions.  This is temporary.
-  // It should be the desired promo size.
-  size_policy->avg_cms_promo()->sample(free());
-  size_policy->avg_old_live()->sample(used());
-
-  if (UsePerfData) {
-    CMSGCAdaptivePolicyCounters* counters = gc_adaptive_policy_counters();
-    counters->update_cms_capacity_counter(capacity());
-  }
-}
-
 void ASConcurrentMarkSweepGeneration::shrink_by(size_t desired_bytes) {
   assert_locked_or_safepoint(Heap_lock);
   assert_lock_strong(freelistLock());
diff --git a/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp b/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp
index b688be7..aa84d71 100644
--- a/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp
+++ b/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp
@@ -60,6 +60,7 @@
 class FreeChunk;
 class PromotionInfo;
 class ScanMarkedObjectsAgainCarefullyClosure;
+class TenuredGeneration;
 
 // A generic CMS bit map. It's the basis for both the CMS marking bit map
 // as well as for the mod union table (in each case only a subset of the
@@ -150,6 +151,8 @@
   size_t    heapWordToOffset(HeapWord* addr) const;
   size_t    heapWordDiffToOffsetDiff(size_t diff) const;
 
+  void print_on_error(outputStream* st, const char* prefix) const;
+
   // debugging
   // is this address range covered by the bit-map?
   NOT_PRODUCT(
@@ -810,9 +813,6 @@
   // used regions of each generation to limit the extent of sweep
   void save_sweep_limits();
 
-  // Resize the generations included in the collector.
-  void compute_new_size();
-
   // A work method used by foreground collection to determine
   // what type of collection (compacting or not, continuing or fresh)
   // it should do.
@@ -909,6 +909,9 @@
   void releaseFreelistLocks() const;
   bool haveFreelistLocks() const;
 
+  // Adjust size of underlying generation
+  void compute_new_size();
+
   // GC prologue and epilogue
   void gc_prologue(bool full);
   void gc_epilogue(bool full);
@@ -983,6 +986,8 @@
   CMSAdaptiveSizePolicy* size_policy();
   CMSGCAdaptivePolicyCounters* gc_adaptive_policy_counters();
 
+  static void print_on_error(outputStream* st);
+
   // debugging
   void verify();
   bool verify_after_remark();
@@ -1082,7 +1087,7 @@
 
  protected:
   // Shrink generation by specified size (returns false if unable to shrink)
-  virtual void shrink_by(size_t bytes);
+  void shrink_free_list_by(size_t bytes);
 
   // Update statistics for GC
   virtual void update_gc_stats(int level, bool full);
@@ -1233,6 +1238,7 @@
     CMSExpansionCause::Cause cause);
   virtual bool expand(size_t bytes, size_t expand_bytes);
   void shrink(size_t bytes);
+  void shrink_by(size_t bytes);
   HeapWord* expand_and_par_lab_allocate(CMSParGCThreadState* ps, size_t word_sz);
   bool expand_and_ensure_spooling_space(PromotionInfo* promo);
 
@@ -1293,7 +1299,13 @@
   bool must_be_youngest() const { return false; }
   bool must_be_oldest()   const { return true; }
 
-  void compute_new_size();
+  // Resize the generation after a compacting GC.  The
+  // generation can be treated as a contiguous space
+  // after the compaction.
+  virtual void compute_new_size();
+  // Resize the generation after a non-compacting
+  // collection.
+  void compute_new_size_free_list();
 
   CollectionTypes debug_collection_type() { return _debug_collection_type; }
   void rotate_debug_collection_type();
@@ -1315,7 +1327,6 @@
   virtual void shrink_by(size_t bytes);
 
  public:
-  virtual void compute_new_size();
   ASConcurrentMarkSweepGeneration(ReservedSpace rs, size_t initial_byte_size,
                                   int level, CardTableRS* ct,
                                   bool use_adaptive_freelists,
diff --git a/src/share/vm/gc_implementation/g1/concurrentMark.cpp b/src/share/vm/gc_implementation/g1/concurrentMark.cpp
index d9d7062..03086a3 100644
--- a/src/share/vm/gc_implementation/g1/concurrentMark.cpp
+++ b/src/share/vm/gc_implementation/g1/concurrentMark.cpp
@@ -101,6 +101,10 @@
 }
 #endif
 
+void CMBitMapRO::print_on_error(outputStream* st, const char* prefix) const {
+  _bm.print_on_error(st, prefix);
+}
+
 bool CMBitMap::allocate(ReservedSpace heap_rs) {
   _bmStartWord = (HeapWord*)(heap_rs.base());
   _bmWordSize  = heap_rs.size()/HeapWordSize;    // heap_rs.size() is in bytes
@@ -3277,6 +3281,13 @@
   }
 }
 
+void ConcurrentMark::print_on_error(outputStream* st) const {
+  st->print_cr("Marking Bits (Prev, Next): (CMBitMap*) " PTR_FORMAT ", (CMBitMap*) " PTR_FORMAT,
+      _prevMarkBitMap, _nextMarkBitMap);
+  _prevMarkBitMap->print_on_error(st, " Prev Bits: ");
+  _nextMarkBitMap->print_on_error(st, " Next Bits: ");
+}
+
 // We take a break if someone is trying to stop the world.
 bool ConcurrentMark::do_yield_check(uint worker_id) {
   if (should_yield()) {
diff --git a/src/share/vm/gc_implementation/g1/concurrentMark.hpp b/src/share/vm/gc_implementation/g1/concurrentMark.hpp
index 43554a5..211a728 100644
--- a/src/share/vm/gc_implementation/g1/concurrentMark.hpp
+++ b/src/share/vm/gc_implementation/g1/concurrentMark.hpp
@@ -113,6 +113,8 @@
     return res;
   }
 
+  void print_on_error(outputStream* st, const char* prefix) const;
+
   // debugging
   NOT_PRODUCT(bool covers(ReservedSpace rs) const;)
 };
@@ -829,6 +831,8 @@
 
   void print_worker_threads_on(outputStream* st) const;
 
+  void print_on_error(outputStream* st) const;
+
   // The following indicate whether a given verbose level has been
   // set. Notice that anything above stats is conditional to
   // _MARKING_VERBOSE_ having been set to 1
diff --git a/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp b/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
index 6109425..fdb602e 100644
--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
+++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
@@ -3427,6 +3427,15 @@
   heap_region_iterate(&blk);
 }
 
+void G1CollectedHeap::print_on_error(outputStream* st) const {
+  this->CollectedHeap::print_on_error(st);
+
+  if (_cm != NULL) {
+    st->cr();
+    _cm->print_on_error(st);
+  }
+}
+
 void G1CollectedHeap::print_gc_threads_on(outputStream* st) const {
   if (G1CollectedHeap::use_parallel_gc_threads()) {
     workers()->print_worker_threads_on(st);
diff --git a/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp b/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
index 557daf8..4fbf0ff 100644
--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
+++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
@@ -1575,6 +1575,7 @@
   virtual void verify(bool silent);
   virtual void print_on(outputStream* st) const;
   virtual void print_extended_on(outputStream* st) const;
+  virtual void print_on_error(outputStream* st) const;
 
   virtual void print_gc_threads_on(outputStream* st) const;
   virtual void gc_threads_do(ThreadClosure* tc) const;
diff --git a/src/share/vm/gc_implementation/parallelScavenge/parMarkBitMap.hpp b/src/share/vm/gc_implementation/parallelScavenge/parMarkBitMap.hpp
index 38061a9..fdc0feb 100644
--- a/src/share/vm/gc_implementation/parallelScavenge/parMarkBitMap.hpp
+++ b/src/share/vm/gc_implementation/parallelScavenge/parMarkBitMap.hpp
@@ -173,6 +173,12 @@
   void reset_counters();
 #endif  // #ifndef PRODUCT
 
+  void print_on_error(outputStream* st) const {
+    st->print_cr("Marking Bits: (ParMarkBitMap*) " PTR_FORMAT, this);
+    _beg_bits.print_on_error(st, " Begin Bits: ");
+    _end_bits.print_on_error(st, " End Bits:   ");
+  }
+
 #ifdef  ASSERT
   void verify_clear() const;
   inline void verify_bit(idx_t bit) const;
diff --git a/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp b/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp
index 5d77e31..9ea2fa8 100644
--- a/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp
+++ b/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.cpp
@@ -648,6 +648,15 @@
   MetaspaceAux::print_on(st);
 }
 
+void ParallelScavengeHeap::print_on_error(outputStream* st) const {
+  this->CollectedHeap::print_on_error(st);
+
+  if (UseParallelOldGC) {
+    st->cr();
+    PSParallelCompact::print_on_error(st);
+  }
+}
+
 void ParallelScavengeHeap::gc_threads_do(ThreadClosure* tc) const {
   PSScavenge::gc_task_manager()->threads_do(tc);
 }
diff --git a/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.hpp b/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.hpp
index ebf554a..c0933fe 100644
--- a/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.hpp
+++ b/src/share/vm/gc_implementation/parallelScavenge/parallelScavengeHeap.hpp
@@ -220,6 +220,7 @@
 
   void prepare_for_verify();
   virtual void print_on(outputStream* st) const;
+  virtual void print_on_error(outputStream* st) const;
   virtual void print_gc_threads_on(outputStream* st) const;
   virtual void gc_threads_do(ThreadClosure* tc) const;
   virtual void print_tracing_info() const;
diff --git a/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp b/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp
index d3d29aa..487a4e5 100644
--- a/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp
+++ b/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp
@@ -165,6 +165,10 @@
 #endif  // #ifdef ASSERT
 
 
+void PSParallelCompact::print_on_error(outputStream* st) {
+  _mark_bitmap.print_on_error(st);
+}
+
 #ifndef PRODUCT
 const char* PSParallelCompact::space_names[] = {
   "old ", "eden", "from", "to  "
diff --git a/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp b/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp
index d26f5b0..68b54fb 100644
--- a/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp
+++ b/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.hpp
@@ -1163,6 +1163,8 @@
   // Time since last full gc (in milliseconds).
   static jlong millis_since_last_gc();
 
+  static void print_on_error(outputStream* st);
+
 #ifndef PRODUCT
   // Debugging support.
   static const char* space_names[last_space_id];
diff --git a/src/share/vm/gc_interface/collectedHeap.hpp b/src/share/vm/gc_interface/collectedHeap.hpp
index 7c63f89..8892934 100644
--- a/src/share/vm/gc_interface/collectedHeap.hpp
+++ b/src/share/vm/gc_interface/collectedHeap.hpp
@@ -567,6 +567,14 @@
     print_on(st);
   }
 
+  virtual void print_on_error(outputStream* st) const {
+    st->print_cr("Heap:");
+    print_extended_on(st);
+    st->cr();
+
+    _barrier_set->print_on(st);
+  }
+
   // Print all GC threads (other than the VM thread)
   // used by this heap.
   virtual void print_gc_threads_on(outputStream* st) const = 0;
diff --git a/src/share/vm/interpreter/linkResolver.cpp b/src/share/vm/interpreter/linkResolver.cpp
index f4b67ee..9f0a154 100644
--- a/src/share/vm/interpreter/linkResolver.cpp
+++ b/src/share/vm/interpreter/linkResolver.cpp
@@ -217,6 +217,7 @@
                                              TRAPS) {
   vmIntrinsics::ID iid = MethodHandles::signature_polymorphic_name_id(name);
   if (TraceMethodHandles) {
+    ResourceMark rm(THREAD);
     tty->print_cr("lookup_polymorphic_method iid=%s %s.%s%s",
                   vmIntrinsics::name_at(iid), klass->external_name(),
                   name->as_C_string(), full_signature->as_C_string());
@@ -231,6 +232,7 @@
       TempNewSymbol basic_signature =
         MethodHandles::lookup_basic_type_signature(full_signature, keep_last_arg, CHECK);
       if (TraceMethodHandles) {
+        ResourceMark rm(THREAD);
         tty->print_cr("lookup_polymorphic_method %s %s => basic %s",
                       name->as_C_string(),
                       full_signature->as_C_string(),
@@ -283,6 +285,8 @@
       }
       if (result.not_null()) {
 #ifdef ASSERT
+        ResourceMark rm(THREAD);
+
         TempNewSymbol basic_signature =
           MethodHandles::lookup_basic_type_signature(full_signature, CHECK);
         int actual_size_of_params = result->size_of_parameters();
@@ -1222,8 +1226,10 @@
   Symbol* method_signature = NULL;
   KlassHandle  current_klass;
   resolve_pool(resolved_klass, method_name,  method_signature, current_klass, pool, index, CHECK);
-  if (TraceMethodHandles)
+  if (TraceMethodHandles) {
+    ResourceMark rm(THREAD);
     tty->print_cr("resolve_invokehandle %s %s", method_name->as_C_string(), method_signature->as_C_string());
+  }
   resolve_handle_call(result, resolved_klass, method_name, method_signature, current_klass, CHECK);
 }
 
diff --git a/src/share/vm/memory/allocation.hpp b/src/share/vm/memory/allocation.hpp
index e1e266e..bc01b01 100644
--- a/src/share/vm/memory/allocation.hpp
+++ b/src/share/vm/memory/allocation.hpp
@@ -611,4 +611,23 @@
   void check()    PRODUCT_RETURN;
 };
 
+// Helper class to allocate arrays that may become large.
+// Uses the OS malloc for allocations smaller than ArrayAllocatorMallocLimit
+// and uses mapped memory for larger allocations.
+// Most OS mallocs do something similar but Solaris malloc does not revert
+// to mapped memory for large allocations. By default ArrayAllocatorMallocLimit
+// is set so that we always use malloc except for Solaris where we set the
+// limit to get mapped memory.
+template <class E, MEMFLAGS F>
+class ArrayAllocator : StackObj {
+  char* _addr;
+  bool _use_malloc;
+  size_t _size;
+ public:
+  ArrayAllocator() : _addr(NULL), _use_malloc(false), _size(0) { }
+  ~ArrayAllocator() { free(); }
+  E* allocate(size_t length);
+  void free();
+};
+
 #endif // SHARE_VM_MEMORY_ALLOCATION_HPP
diff --git a/src/share/vm/memory/allocation.inline.hpp b/src/share/vm/memory/allocation.inline.hpp
index 6c236e1..79bd774 100644
--- a/src/share/vm/memory/allocation.inline.hpp
+++ b/src/share/vm/memory/allocation.inline.hpp
@@ -108,5 +108,49 @@
    FreeHeap(p, F);
 }
 
+template <class E, MEMFLAGS F>
+E* ArrayAllocator<E, F>::allocate(size_t length) {
+  assert(_addr == NULL, "Already in use");
+
+  _size = sizeof(E) * length;
+  _use_malloc = _size < ArrayAllocatorMallocLimit;
+
+  if (_use_malloc) {
+    _addr = AllocateHeap(_size, F);
+    if (_addr == NULL && _size >=  (size_t)os::vm_allocation_granularity()) {
+      // malloc failed let's try with mmap instead
+      _use_malloc = false;
+    } else {
+      return (E*)_addr;
+    }
+  }
+
+  int alignment = os::vm_allocation_granularity();
+  _size = align_size_up(_size, alignment);
+
+  _addr = os::reserve_memory(_size, NULL, alignment);
+  if (_addr == NULL) {
+    vm_exit_out_of_memory(_size, "Allocator (reserve)");
+  }
+
+  bool success = os::commit_memory(_addr, _size, false /* executable */);
+  if (!success) {
+    vm_exit_out_of_memory(_size, "Allocator (commit)");
+  }
+
+  return (E*)_addr;
+}
+
+template<class E, MEMFLAGS F>
+void ArrayAllocator<E, F>::free() {
+  if (_addr != NULL) {
+    if (_use_malloc) {
+      FreeHeap(_addr, F);
+    } else {
+      os::release_memory(_addr, _size);
+    }
+    _addr = NULL;
+  }
+}
 
 #endif // SHARE_VM_MEMORY_ALLOCATION_INLINE_HPP
diff --git a/src/share/vm/memory/genCollectedHeap.cpp b/src/share/vm/memory/genCollectedHeap.cpp
index 6b7402c..f39631a 100644
--- a/src/share/vm/memory/genCollectedHeap.cpp
+++ b/src/share/vm/memory/genCollectedHeap.cpp
@@ -819,12 +819,13 @@
 // Returns "TRUE" iff "p" points into the committed areas of the heap.
 bool GenCollectedHeap::is_in(const void* p) const {
   #ifndef ASSERT
-  guarantee(VerifyBeforeGC   ||
-            VerifyDuringGC   ||
-            VerifyBeforeExit ||
-            PrintAssembly    ||
-            tty->count() != 0 ||   // already printing
-            VerifyAfterGC    ||
+  guarantee(VerifyBeforeGC      ||
+            VerifyDuringGC      ||
+            VerifyBeforeExit    ||
+            VerifyDuringStartup ||
+            PrintAssembly       ||
+            tty->count() != 0   ||   // already printing
+            VerifyAfterGC       ||
     VMError::fatal_error_in_progress(), "too expensive");
 
   #endif
@@ -1132,6 +1133,17 @@
 #endif // INCLUDE_ALL_GCS
 }
 
+void GenCollectedHeap::print_on_error(outputStream* st) const {
+  this->CollectedHeap::print_on_error(st);
+
+#if INCLUDE_ALL_GCS
+  if (UseConcMarkSweepGC) {
+    st->cr();
+    CMSCollector::print_on_error(st);
+  }
+#endif // INCLUDE_ALL_GCS
+}
+
 void GenCollectedHeap::print_tracing_info() const {
   if (TraceGen0Time) {
     get_gen(0)->print_summary_info();
diff --git a/src/share/vm/memory/genCollectedHeap.hpp b/src/share/vm/memory/genCollectedHeap.hpp
index 4d79e24..034511b 100644
--- a/src/share/vm/memory/genCollectedHeap.hpp
+++ b/src/share/vm/memory/genCollectedHeap.hpp
@@ -344,6 +344,7 @@
   virtual void print_gc_threads_on(outputStream* st) const;
   virtual void gc_threads_do(ThreadClosure* tc) const;
   virtual void print_tracing_info() const;
+  virtual void print_on_error(outputStream* st) const;
 
   // PrintGC, PrintGCDetails support
   void print_heap_change(size_t prev_used) const;
diff --git a/src/share/vm/memory/generation.cpp b/src/share/vm/memory/generation.cpp
index b644ce2..b608874 100644
--- a/src/share/vm/memory/generation.cpp
+++ b/src/share/vm/memory/generation.cpp
@@ -382,7 +382,9 @@
 CardGeneration::CardGeneration(ReservedSpace rs, size_t initial_byte_size,
                                int level,
                                GenRemSet* remset) :
-  Generation(rs, initial_byte_size, level), _rs(remset)
+  Generation(rs, initial_byte_size, level), _rs(remset),
+  _shrink_factor(0), _min_heap_delta_bytes(), _capacity_at_prologue(),
+  _used_at_prologue()
 {
   HeapWord* start = (HeapWord*)rs.base();
   size_t reserved_byte_size = rs.size();
@@ -406,6 +408,9 @@
     // the end if we try.
     guarantee(_rs->is_aligned(reserved_mr.end()), "generation must be card aligned");
   }
+  _min_heap_delta_bytes = MinHeapDeltaBytes;
+  _capacity_at_prologue = initial_byte_size;
+  _used_at_prologue = 0;
 }
 
 bool CardGeneration::expand(size_t bytes, size_t expand_bytes) {
@@ -457,6 +462,160 @@
 }
 
 
+void CardGeneration::compute_new_size() {
+  assert(_shrink_factor <= 100, "invalid shrink factor");
+  size_t current_shrink_factor = _shrink_factor;
+  _shrink_factor = 0;
+
+  // We don't have floating point command-line arguments
+  // Note:  argument processing ensures that MinHeapFreeRatio < 100.
+  const double minimum_free_percentage = MinHeapFreeRatio / 100.0;
+  const double maximum_used_percentage = 1.0 - minimum_free_percentage;
+
+  // Compute some numbers about the state of the heap.
+  const size_t used_after_gc = used();
+  const size_t capacity_after_gc = capacity();
+
+  const double min_tmp = used_after_gc / maximum_used_percentage;
+  size_t minimum_desired_capacity = (size_t)MIN2(min_tmp, double(max_uintx));
+  // Don't shrink less than the initial generation size
+  minimum_desired_capacity = MAX2(minimum_desired_capacity,
+                                  spec()->init_size());
+  assert(used_after_gc <= minimum_desired_capacity, "sanity check");
+
+  if (PrintGC && Verbose) {
+    const size_t free_after_gc = free();
+    const double free_percentage = ((double)free_after_gc) / capacity_after_gc;
+    gclog_or_tty->print_cr("TenuredGeneration::compute_new_size: ");
+    gclog_or_tty->print_cr("  "
+                  "  minimum_free_percentage: %6.2f"
+                  "  maximum_used_percentage: %6.2f",
+                  minimum_free_percentage,
+                  maximum_used_percentage);
+    gclog_or_tty->print_cr("  "
+                  "   free_after_gc   : %6.1fK"
+                  "   used_after_gc   : %6.1fK"
+                  "   capacity_after_gc   : %6.1fK",
+                  free_after_gc / (double) K,
+                  used_after_gc / (double) K,
+                  capacity_after_gc / (double) K);
+    gclog_or_tty->print_cr("  "
+                  "   free_percentage: %6.2f",
+                  free_percentage);
+  }
+
+  if (capacity_after_gc < minimum_desired_capacity) {
+    // If we have less free space than we want then expand
+    size_t expand_bytes = minimum_desired_capacity - capacity_after_gc;
+    // Don't expand unless it's significant
+    if (expand_bytes >= _min_heap_delta_bytes) {
+      expand(expand_bytes, 0); // safe if expansion fails
+    }
+    if (PrintGC && Verbose) {
+      gclog_or_tty->print_cr("    expanding:"
+                    "  minimum_desired_capacity: %6.1fK"
+                    "  expand_bytes: %6.1fK"
+                    "  _min_heap_delta_bytes: %6.1fK",
+                    minimum_desired_capacity / (double) K,
+                    expand_bytes / (double) K,
+                    _min_heap_delta_bytes / (double) K);
+    }
+    return;
+  }
+
+  // No expansion, now see if we want to shrink
+  size_t shrink_bytes = 0;
+  // We would never want to shrink more than this
+  size_t max_shrink_bytes = capacity_after_gc - minimum_desired_capacity;
+
+  if (MaxHeapFreeRatio < 100) {
+    const double maximum_free_percentage = MaxHeapFreeRatio / 100.0;
+    const double minimum_used_percentage = 1.0 - maximum_free_percentage;
+    const double max_tmp = used_after_gc / minimum_used_percentage;
+    size_t maximum_desired_capacity = (size_t)MIN2(max_tmp, double(max_uintx));
+    maximum_desired_capacity = MAX2(maximum_desired_capacity,
+                                    spec()->init_size());
+    if (PrintGC && Verbose) {
+      gclog_or_tty->print_cr("  "
+                             "  maximum_free_percentage: %6.2f"
+                             "  minimum_used_percentage: %6.2f",
+                             maximum_free_percentage,
+                             minimum_used_percentage);
+      gclog_or_tty->print_cr("  "
+                             "  _capacity_at_prologue: %6.1fK"
+                             "  minimum_desired_capacity: %6.1fK"
+                             "  maximum_desired_capacity: %6.1fK",
+                             _capacity_at_prologue / (double) K,
+                             minimum_desired_capacity / (double) K,
+                             maximum_desired_capacity / (double) K);
+    }
+    assert(minimum_desired_capacity <= maximum_desired_capacity,
+           "sanity check");
+
+    if (capacity_after_gc > maximum_desired_capacity) {
+      // Capacity too large, compute shrinking size
+      shrink_bytes = capacity_after_gc - maximum_desired_capacity;
+      // We don't want shrink all the way back to initSize if people call
+      // System.gc(), because some programs do that between "phases" and then
+      // we'd just have to grow the heap up again for the next phase.  So we
+      // damp the shrinking: 0% on the first call, 10% on the second call, 40%
+      // on the third call, and 100% by the fourth call.  But if we recompute
+      // size without shrinking, it goes back to 0%.
+      shrink_bytes = shrink_bytes / 100 * current_shrink_factor;
+      assert(shrink_bytes <= max_shrink_bytes, "invalid shrink size");
+      if (current_shrink_factor == 0) {
+        _shrink_factor = 10;
+      } else {
+        _shrink_factor = MIN2(current_shrink_factor * 4, (size_t) 100);
+      }
+      if (PrintGC && Verbose) {
+        gclog_or_tty->print_cr("  "
+                      "  shrinking:"
+                      "  initSize: %.1fK"
+                      "  maximum_desired_capacity: %.1fK",
+                      spec()->init_size() / (double) K,
+                      maximum_desired_capacity / (double) K);
+        gclog_or_tty->print_cr("  "
+                      "  shrink_bytes: %.1fK"
+                      "  current_shrink_factor: %d"
+                      "  new shrink factor: %d"
+                      "  _min_heap_delta_bytes: %.1fK",
+                      shrink_bytes / (double) K,
+                      current_shrink_factor,
+                      _shrink_factor,
+                      _min_heap_delta_bytes / (double) K);
+      }
+    }
+  }
+
+  if (capacity_after_gc > _capacity_at_prologue) {
+    // We might have expanded for promotions, in which case we might want to
+    // take back that expansion if there's room after GC.  That keeps us from
+    // stretching the heap with promotions when there's plenty of room.
+    size_t expansion_for_promotion = capacity_after_gc - _capacity_at_prologue;
+    expansion_for_promotion = MIN2(expansion_for_promotion, max_shrink_bytes);
+    // We have two shrinking computations, take the largest
+    shrink_bytes = MAX2(shrink_bytes, expansion_for_promotion);
+    assert(shrink_bytes <= max_shrink_bytes, "invalid shrink size");
+    if (PrintGC && Verbose) {
+      gclog_or_tty->print_cr("  "
+                             "  aggressive shrinking:"
+                             "  _capacity_at_prologue: %.1fK"
+                             "  capacity_after_gc: %.1fK"
+                             "  expansion_for_promotion: %.1fK"
+                             "  shrink_bytes: %.1fK",
+                             capacity_after_gc / (double) K,
+                             _capacity_at_prologue / (double) K,
+                             expansion_for_promotion / (double) K,
+                             shrink_bytes / (double) K);
+    }
+  }
+  // Don't shrink unless it's significant
+  if (shrink_bytes >= _min_heap_delta_bytes) {
+    shrink(shrink_bytes);
+  }
+}
+
 // Currently nothing to do.
 void CardGeneration::prepare_for_verify() {}
 
diff --git a/src/share/vm/memory/generation.hpp b/src/share/vm/memory/generation.hpp
index 2169ae8..feb4fde 100644
--- a/src/share/vm/memory/generation.hpp
+++ b/src/share/vm/memory/generation.hpp
@@ -634,6 +634,17 @@
   // This is local to this generation.
   BlockOffsetSharedArray* _bts;
 
+  // current shrinking effect: this damps shrinking when the heap gets empty.
+  size_t _shrink_factor;
+
+  size_t _min_heap_delta_bytes;   // Minimum amount to expand.
+
+  // Some statistics from before gc started.
+  // These are gathered in the gc_prologue (and should_collect)
+  // to control growing/shrinking policy in spite of promotions.
+  size_t _capacity_at_prologue;
+  size_t _used_at_prologue;
+
   CardGeneration(ReservedSpace rs, size_t initial_byte_size, int level,
                  GenRemSet* remset);
 
@@ -644,6 +655,11 @@
   // necessarily the full "bytes") was done.
   virtual bool expand(size_t bytes, size_t expand_bytes);
 
+  // Shrink generation with specified size (returns false if unable to shrink)
+  virtual void shrink(size_t bytes) = 0;
+
+  virtual void compute_new_size();
+
   virtual void clear_remembered_set();
 
   virtual void invalidate_remembered_set();
@@ -667,7 +683,6 @@
   friend class VM_PopulateDumpSharedSpace;
 
  protected:
-  size_t     _min_heap_delta_bytes;   // Minimum amount to expand.
   ContiguousSpace*  _the_space;       // actual space holding objects
   WaterMark  _last_gc;                // watermark between objects allocated before
                                       // and after last GC.
@@ -688,11 +703,10 @@
 
  public:
   OneContigSpaceCardGeneration(ReservedSpace rs, size_t initial_byte_size,
-                               size_t min_heap_delta_bytes,
                                int level, GenRemSet* remset,
                                ContiguousSpace* space) :
     CardGeneration(rs, initial_byte_size, level, remset),
-    _the_space(space), _min_heap_delta_bytes(min_heap_delta_bytes)
+    _the_space(space)
   {}
 
   inline bool is_in(const void* p) const;
diff --git a/src/share/vm/memory/tenuredGeneration.cpp b/src/share/vm/memory/tenuredGeneration.cpp
index 1e15d65..ac1e931 100644
--- a/src/share/vm/memory/tenuredGeneration.cpp
+++ b/src/share/vm/memory/tenuredGeneration.cpp
@@ -39,7 +39,7 @@
                                      size_t initial_byte_size, int level,
                                      GenRemSet* remset) :
   OneContigSpaceCardGeneration(rs, initial_byte_size,
-                               MinHeapDeltaBytes, level, remset, NULL)
+                               level, remset, NULL)
 {
   HeapWord* bottom = (HeapWord*) _virtual_space.low();
   HeapWord* end    = (HeapWord*) _virtual_space.high();
@@ -86,162 +86,6 @@
   return "tenured generation";
 }
 
-void TenuredGeneration::compute_new_size() {
-  assert(_shrink_factor <= 100, "invalid shrink factor");
-  size_t current_shrink_factor = _shrink_factor;
-  _shrink_factor = 0;
-
-  // We don't have floating point command-line arguments
-  // Note:  argument processing ensures that MinHeapFreeRatio < 100.
-  const double minimum_free_percentage = MinHeapFreeRatio / 100.0;
-  const double maximum_used_percentage = 1.0 - minimum_free_percentage;
-
-  // Compute some numbers about the state of the heap.
-  const size_t used_after_gc = used();
-  const size_t capacity_after_gc = capacity();
-
-  const double min_tmp = used_after_gc / maximum_used_percentage;
-  size_t minimum_desired_capacity = (size_t)MIN2(min_tmp, double(max_uintx));
-  // Don't shrink less than the initial generation size
-  minimum_desired_capacity = MAX2(minimum_desired_capacity,
-                                  spec()->init_size());
-  assert(used_after_gc <= minimum_desired_capacity, "sanity check");
-
-  if (PrintGC && Verbose) {
-    const size_t free_after_gc = free();
-    const double free_percentage = ((double)free_after_gc) / capacity_after_gc;
-    gclog_or_tty->print_cr("TenuredGeneration::compute_new_size: ");
-    gclog_or_tty->print_cr("  "
-                  "  minimum_free_percentage: %6.2f"
-                  "  maximum_used_percentage: %6.2f",
-                  minimum_free_percentage,
-                  maximum_used_percentage);
-    gclog_or_tty->print_cr("  "
-                  "   free_after_gc   : %6.1fK"
-                  "   used_after_gc   : %6.1fK"
-                  "   capacity_after_gc   : %6.1fK",
-                  free_after_gc / (double) K,
-                  used_after_gc / (double) K,
-                  capacity_after_gc / (double) K);
-    gclog_or_tty->print_cr("  "
-                  "   free_percentage: %6.2f",
-                  free_percentage);
-  }
-
-  if (capacity_after_gc < minimum_desired_capacity) {
-    // If we have less free space than we want then expand
-    size_t expand_bytes = minimum_desired_capacity - capacity_after_gc;
-    // Don't expand unless it's significant
-    if (expand_bytes >= _min_heap_delta_bytes) {
-      expand(expand_bytes, 0); // safe if expansion fails
-    }
-    if (PrintGC && Verbose) {
-      gclog_or_tty->print_cr("    expanding:"
-                    "  minimum_desired_capacity: %6.1fK"
-                    "  expand_bytes: %6.1fK"
-                    "  _min_heap_delta_bytes: %6.1fK",
-                    minimum_desired_capacity / (double) K,
-                    expand_bytes / (double) K,
-                    _min_heap_delta_bytes / (double) K);
-    }
-    return;
-  }
-
-  // No expansion, now see if we want to shrink
-  size_t shrink_bytes = 0;
-  // We would never want to shrink more than this
-  size_t max_shrink_bytes = capacity_after_gc - minimum_desired_capacity;
-
-  if (MaxHeapFreeRatio < 100) {
-    const double maximum_free_percentage = MaxHeapFreeRatio / 100.0;
-    const double minimum_used_percentage = 1.0 - maximum_free_percentage;
-    const double max_tmp = used_after_gc / minimum_used_percentage;
-    size_t maximum_desired_capacity = (size_t)MIN2(max_tmp, double(max_uintx));
-    maximum_desired_capacity = MAX2(maximum_desired_capacity,
-                                    spec()->init_size());
-    if (PrintGC && Verbose) {
-      gclog_or_tty->print_cr("  "
-                             "  maximum_free_percentage: %6.2f"
-                             "  minimum_used_percentage: %6.2f",
-                             maximum_free_percentage,
-                             minimum_used_percentage);
-      gclog_or_tty->print_cr("  "
-                             "  _capacity_at_prologue: %6.1fK"
-                             "  minimum_desired_capacity: %6.1fK"
-                             "  maximum_desired_capacity: %6.1fK",
-                             _capacity_at_prologue / (double) K,
-                             minimum_desired_capacity / (double) K,
-                             maximum_desired_capacity / (double) K);
-    }
-    assert(minimum_desired_capacity <= maximum_desired_capacity,
-           "sanity check");
-
-    if (capacity_after_gc > maximum_desired_capacity) {
-      // Capacity too large, compute shrinking size
-      shrink_bytes = capacity_after_gc - maximum_desired_capacity;
-      // We don't want shrink all the way back to initSize if people call
-      // System.gc(), because some programs do that between "phases" and then
-      // we'd just have to grow the heap up again for the next phase.  So we
-      // damp the shrinking: 0% on the first call, 10% on the second call, 40%
-      // on the third call, and 100% by the fourth call.  But if we recompute
-      // size without shrinking, it goes back to 0%.
-      shrink_bytes = shrink_bytes / 100 * current_shrink_factor;
-      assert(shrink_bytes <= max_shrink_bytes, "invalid shrink size");
-      if (current_shrink_factor == 0) {
-        _shrink_factor = 10;
-      } else {
-        _shrink_factor = MIN2(current_shrink_factor * 4, (size_t) 100);
-      }
-      if (PrintGC && Verbose) {
-        gclog_or_tty->print_cr("  "
-                      "  shrinking:"
-                      "  initSize: %.1fK"
-                      "  maximum_desired_capacity: %.1fK",
-                      spec()->init_size() / (double) K,
-                      maximum_desired_capacity / (double) K);
-        gclog_or_tty->print_cr("  "
-                      "  shrink_bytes: %.1fK"
-                      "  current_shrink_factor: %d"
-                      "  new shrink factor: %d"
-                      "  _min_heap_delta_bytes: %.1fK",
-                      shrink_bytes / (double) K,
-                      current_shrink_factor,
-                      _shrink_factor,
-                      _min_heap_delta_bytes / (double) K);
-      }
-    }
-  }
-
-  if (capacity_after_gc > _capacity_at_prologue) {
-    // We might have expanded for promotions, in which case we might want to
-    // take back that expansion if there's room after GC.  That keeps us from
-    // stretching the heap with promotions when there's plenty of room.
-    size_t expansion_for_promotion = capacity_after_gc - _capacity_at_prologue;
-    expansion_for_promotion = MIN2(expansion_for_promotion, max_shrink_bytes);
-    // We have two shrinking computations, take the largest
-    shrink_bytes = MAX2(shrink_bytes, expansion_for_promotion);
-    assert(shrink_bytes <= max_shrink_bytes, "invalid shrink size");
-    if (PrintGC && Verbose) {
-      gclog_or_tty->print_cr("  "
-                             "  aggressive shrinking:"
-                             "  _capacity_at_prologue: %.1fK"
-                             "  capacity_after_gc: %.1fK"
-                             "  expansion_for_promotion: %.1fK"
-                             "  shrink_bytes: %.1fK",
-                             capacity_after_gc / (double) K,
-                             _capacity_at_prologue / (double) K,
-                             expansion_for_promotion / (double) K,
-                             shrink_bytes / (double) K);
-    }
-  }
-  // Don't shrink unless it's significant
-  if (shrink_bytes >= _min_heap_delta_bytes) {
-    shrink(shrink_bytes);
-  }
-  assert(used() == used_after_gc && used_after_gc <= capacity(),
-         "sanity check");
-}
-
 void TenuredGeneration::gc_prologue(bool full) {
   _capacity_at_prologue = capacity();
   _used_at_prologue = used();
@@ -312,6 +156,19 @@
                                         size, is_tlab);
 }
 
+void TenuredGeneration::compute_new_size() {
+  assert_locked_or_safepoint(Heap_lock);
+
+  // Compute some numbers about the state of the heap.
+  const size_t used_after_gc = used();
+  const size_t capacity_after_gc = capacity();
+
+  CardGeneration::compute_new_size();
+
+  assert(used() == used_after_gc && used_after_gc <= capacity(),
+         err_msg("used: " SIZE_FORMAT " used_after_gc: " SIZE_FORMAT
+         " capacity: " SIZE_FORMAT, used(), used_after_gc, capacity()));
+}
 void TenuredGeneration::update_gc_stats(int current_level,
                                         bool full) {
   // If the next lower level(s) has been collected, gather any statistics
diff --git a/src/share/vm/memory/tenuredGeneration.hpp b/src/share/vm/memory/tenuredGeneration.hpp
index b948a1b..e6e9b79 100644
--- a/src/share/vm/memory/tenuredGeneration.hpp
+++ b/src/share/vm/memory/tenuredGeneration.hpp
@@ -38,13 +38,6 @@
 class TenuredGeneration: public OneContigSpaceCardGeneration {
   friend class VMStructs;
  protected:
-  // current shrinking effect: this damps shrinking when the heap gets empty.
-  size_t _shrink_factor;
-  // Some statistics from before gc started.
-  // These are gathered in the gc_prologue (and should_collect)
-  // to control growing/shrinking policy in spite of promotions.
-  size_t _capacity_at_prologue;
-  size_t _used_at_prologue;
 
 #if INCLUDE_ALL_GCS
   // To support parallel promotion: an array of parallel allocation
@@ -80,9 +73,6 @@
     return !CollectGen0First;
   }
 
-  // Mark sweep support
-  void compute_new_size();
-
   virtual void gc_prologue(bool full);
   virtual void gc_epilogue(bool full);
   bool should_collect(bool   full,
@@ -93,6 +83,7 @@
                        bool clear_all_soft_refs,
                        size_t size,
                        bool is_tlab);
+  virtual void compute_new_size();
 
 #if INCLUDE_ALL_GCS
   // Overrides.
diff --git a/src/share/vm/oops/method.hpp b/src/share/vm/oops/method.hpp
index ea92383..b9e176f 100644
--- a/src/share/vm/oops/method.hpp
+++ b/src/share/vm/oops/method.hpp
@@ -758,15 +758,19 @@
   void print_made_not_compilable(int comp_level, bool is_osr, bool report, const char* reason);
 
  public:
-  bool  is_not_c1_compilable() const          { return access_flags().is_not_c1_compilable(); }
-  void set_not_c1_compilable()                {       _access_flags.set_not_c1_compilable();  }
-  bool  is_not_c2_compilable() const          { return access_flags().is_not_c2_compilable(); }
-  void set_not_c2_compilable()                {       _access_flags.set_not_c2_compilable();  }
+  bool   is_not_c1_compilable() const         { return access_flags().is_not_c1_compilable();  }
+  void  set_not_c1_compilable()               {       _access_flags.set_not_c1_compilable();   }
+  void clear_not_c1_compilable()              {       _access_flags.clear_not_c1_compilable(); }
+  bool   is_not_c2_compilable() const         { return access_flags().is_not_c2_compilable();  }
+  void  set_not_c2_compilable()               {       _access_flags.set_not_c2_compilable();   }
+  void clear_not_c2_compilable()              {       _access_flags.clear_not_c2_compilable(); }
 
-  bool  is_not_c1_osr_compilable() const      { return is_not_c1_compilable(); }  // don't waste an accessFlags bit
-  void set_not_c1_osr_compilable()            {       set_not_c1_compilable(); }  // don't waste an accessFlags bit
-  bool  is_not_c2_osr_compilable() const      { return access_flags().is_not_c2_osr_compilable(); }
-  void set_not_c2_osr_compilable()            {       _access_flags.set_not_c2_osr_compilable();  }
+  bool    is_not_c1_osr_compilable() const    { return is_not_c1_compilable(); }  // don't waste an accessFlags bit
+  void   set_not_c1_osr_compilable()          {       set_not_c1_compilable(); }  // don't waste an accessFlags bit
+  void clear_not_c1_osr_compilable()          {     clear_not_c1_compilable(); }  // don't waste an accessFlags bit
+  bool   is_not_c2_osr_compilable() const     { return access_flags().is_not_c2_osr_compilable();  }
+  void  set_not_c2_osr_compilable()           {       _access_flags.set_not_c2_osr_compilable();   }
+  void clear_not_c2_osr_compilable()          {       _access_flags.clear_not_c2_osr_compilable(); }
 
   // Background compilation support
   bool queued_for_compilation() const  { return access_flags().queued_for_compilation(); }
diff --git a/src/share/vm/oops/methodData.cpp b/src/share/vm/oops/methodData.cpp
index e43b93b..d01775c 100644
--- a/src/share/vm/oops/methodData.cpp
+++ b/src/share/vm/oops/methodData.cpp
@@ -660,29 +660,9 @@
   // Set the method back-pointer.
   _method = method();
 
-  _invocation_counter.init();
-  _backedge_counter.init();
-  _invocation_counter_start = 0;
-  _backedge_counter_start = 0;
-  _num_loops = 0;
-  _num_blocks = 0;
-  _highest_comp_level = 0;
-  _highest_osr_comp_level = 0;
-  _would_profile = true;
+  init();
   set_creation_mileage(mileage_of(method()));
 
-  // Initialize flags and trap history.
-  _nof_decompiles = 0;
-  _nof_overflow_recompiles = 0;
-  _nof_overflow_traps = 0;
-  _eflags = 0;
-  _arg_local = 0;
-  _arg_stack = 0;
-  _arg_returned = 0;
-  assert(sizeof(_trap_hist) % sizeof(HeapWord) == 0, "align");
-  Copy::zero_to_words((HeapWord*) &_trap_hist,
-                      sizeof(_trap_hist) / sizeof(HeapWord));
-
   // Go through the bytecodes and allocate and initialize the
   // corresponding data cells.
   int data_size = 0;
@@ -721,7 +701,27 @@
   post_initialize(&stream);
 
   set_size(object_size);
+}
 
+void MethodData::init() {
+  _invocation_counter.init();
+  _backedge_counter.init();
+  _invocation_counter_start = 0;
+  _backedge_counter_start = 0;
+  _num_loops = 0;
+  _num_blocks = 0;
+  _highest_comp_level = 0;
+  _highest_osr_comp_level = 0;
+  _would_profile = true;
+
+  // Initialize flags and trap history.
+  _nof_decompiles = 0;
+  _nof_overflow_recompiles = 0;
+  _nof_overflow_traps = 0;
+  clear_escape_info();
+  assert(sizeof(_trap_hist) % sizeof(HeapWord) == 0, "align");
+  Copy::zero_to_words((HeapWord*) &_trap_hist,
+                      sizeof(_trap_hist) / sizeof(HeapWord));
 }
 
 // Get a measure of how much mileage the method has on it.
diff --git a/src/share/vm/oops/methodData.hpp b/src/share/vm/oops/methodData.hpp
index 2f45870..b9fc63e 100644
--- a/src/share/vm/oops/methodData.hpp
+++ b/src/share/vm/oops/methodData.hpp
@@ -1284,8 +1284,8 @@
     return bytecode_cell_count(code) != no_profile_data;
   }
 
-  // Perform initialization of a new MethodData*
-  void initialize(methodHandle method);
+  // reset into original state
+  void init();
 
   // My size
   int size_in_bytes() const { return _size; }
@@ -1365,6 +1365,7 @@
   intx arg_stack()                               { return _arg_stack; }
   intx arg_returned()                            { return _arg_returned; }
   uint arg_modified(int a)                       { ArgInfoData *aid = arg_info();
+                                                   assert(aid != NULL, "arg_info must be not null");
                                                    assert(a >= 0 && a < aid->number_of_args(), "valid argument number");
                                                    return aid->arg_modified(a); }
 
@@ -1373,8 +1374,8 @@
   void set_arg_stack(intx v)                     { _arg_stack = v; }
   void set_arg_returned(intx v)                  { _arg_returned = v; }
   void set_arg_modified(int a, uint v)           { ArgInfoData *aid = arg_info();
+                                                   assert(aid != NULL, "arg_info must be not null");
                                                    assert(a >= 0 && a < aid->number_of_args(), "valid argument number");
-
                                                    aid->set_arg_modified(a, v); }
 
   void clear_escape_info()                       { _eflags = _arg_local = _arg_stack = _arg_returned = 0; }
diff --git a/src/share/vm/prims/whitebox.cpp b/src/share/vm/prims/whitebox.cpp
index e6b1e70..1dfcd3d 100644
--- a/src/share/vm/prims/whitebox.cpp
+++ b/src/share/vm/prims/whitebox.cpp
@@ -49,6 +49,7 @@
 #endif // INCLUDE_NMT
 
 #include "compiler/compileBroker.hpp"
+#include "runtime/compilationPolicy.hpp"
 
 bool WhiteBox::_used = false;
 
@@ -214,11 +215,11 @@
   return (code->is_alive() && !code->is_marked_for_deoptimization());
 WB_END
 
-WB_ENTRY(jboolean, WB_IsMethodCompilable(JNIEnv* env, jobject o, jobject method))
+WB_ENTRY(jboolean, WB_IsMethodCompilable(JNIEnv* env, jobject o, jobject method, jint comp_level))
   jmethodID jmid = reflected_method_to_jmid(thread, env, method);
   MutexLockerEx mu(Compile_lock);
   methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
-  return !mh->is_not_compilable();
+  return CompilationPolicy::can_be_compiled(mh, comp_level);
 WB_END
 
 WB_ENTRY(jboolean, WB_IsMethodQueuedForCompilation(JNIEnv* env, jobject o, jobject method))
@@ -242,7 +243,7 @@
   mh->set_not_compilable();
 WB_END
 
-WB_ENTRY(jboolean, WB_SetDontInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value))
+WB_ENTRY(jboolean, WB_TestSetDontInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value))
   jmethodID jmid = reflected_method_to_jmid(thread, env, method);
   methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
   bool result = mh->dont_inline();
@@ -255,6 +256,54 @@
          CompileBroker::queue_size(CompLevel_full_profile) /* C1 */;
 WB_END
 
+
+WB_ENTRY(jboolean, WB_TestSetForceInlineMethod(JNIEnv* env, jobject o, jobject method, jboolean value))
+  jmethodID jmid = reflected_method_to_jmid(thread, env, method);
+  methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
+  bool result = mh->force_inline();
+  mh->set_force_inline(value == JNI_TRUE);
+  return result;
+WB_END
+
+WB_ENTRY(jboolean, WB_EnqueueMethodForCompilation(JNIEnv* env, jobject o, jobject method, jint comp_level))
+  jmethodID jmid = reflected_method_to_jmid(thread, env, method);
+  methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
+  nmethod* nm = CompileBroker::compile_method(mh, InvocationEntryBci, comp_level, mh, mh->invocation_count(), "WhiteBox", THREAD);
+  MutexLockerEx mu(Compile_lock);
+  return (mh->queued_for_compilation() || nm != NULL);
+WB_END
+
+WB_ENTRY(void, WB_ClearMethodState(JNIEnv* env, jobject o, jobject method))
+  jmethodID jmid = reflected_method_to_jmid(thread, env, method);
+  methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
+  MutexLockerEx mu(Compile_lock);
+  MethodData* mdo = mh->method_data();
+
+  if (mdo != NULL) {
+    mdo->init();
+    ResourceMark rm;
+    int arg_count = mdo->method()->size_of_parameters();
+    for (int i = 0; i < arg_count; i++) {
+      mdo->set_arg_modified(i, 0);
+    }
+  }
+
+  mh->backedge_counter()->init();
+  mh->invocation_counter()->init();
+  mh->set_interpreter_invocation_count(0);
+  mh->set_interpreter_throwout_count(0);
+  mh->clear_not_c1_compilable();
+  mh->clear_not_c2_compilable();
+  mh->clear_not_c2_osr_compilable();
+  NOT_PRODUCT(mh->set_compiled_invocation_count(0));
+
+#ifdef TIERED
+  mh->set_rate(0.0F);
+  mh->set_prev_event_count(0);
+  mh->set_prev_time(0);
+#endif
+WB_END
+
 WB_ENTRY(jboolean, WB_IsInStringTable(JNIEnv* env, jobject o, jstring javaString))
   ResourceMark rm(THREAD);
   int len;
@@ -272,7 +321,6 @@
   Universe::heap()->collect(GCCause::_last_ditch_collection);
 WB_END
 
-
 //Some convenience methods to deal with objects from java
 int WhiteBox::offset_for_field(const char* field_name, oop object,
     Symbol* signature_symbol) {
@@ -354,18 +402,24 @@
                                                       (void*)&WB_DeoptimizeMethod  },
   {CC"isMethodCompiled",   CC"(Ljava/lang/reflect/Method;)Z",
                                                       (void*)&WB_IsMethodCompiled  },
-  {CC"isMethodCompilable", CC"(Ljava/lang/reflect/Method;)Z",
+  {CC"isMethodCompilable", CC"(Ljava/lang/reflect/Method;I)Z",
                                                       (void*)&WB_IsMethodCompilable},
   {CC"isMethodQueuedForCompilation",
       CC"(Ljava/lang/reflect/Method;)Z",              (void*)&WB_IsMethodQueuedForCompilation},
   {CC"makeMethodNotCompilable",
       CC"(Ljava/lang/reflect/Method;)V",              (void*)&WB_MakeMethodNotCompilable},
-  {CC"setDontInlineMethod",
-      CC"(Ljava/lang/reflect/Method;Z)Z",             (void*)&WB_SetDontInlineMethod},
+  {CC"testSetDontInlineMethod",
+      CC"(Ljava/lang/reflect/Method;Z)Z",             (void*)&WB_TestSetDontInlineMethod},
   {CC"getMethodCompilationLevel",
       CC"(Ljava/lang/reflect/Method;)I",              (void*)&WB_GetMethodCompilationLevel},
   {CC"getCompileQueuesSize",
       CC"()I",                                        (void*)&WB_GetCompileQueuesSize},
+  {CC"testSetForceInlineMethod",
+      CC"(Ljava/lang/reflect/Method;Z)Z",             (void*)&WB_TestSetForceInlineMethod},
+  {CC"enqueueMethodForCompilation",
+      CC"(Ljava/lang/reflect/Method;I)Z",             (void*)&WB_EnqueueMethodForCompilation},
+  {CC"clearMethodState",
+      CC"(Ljava/lang/reflect/Method;)V",              (void*)&WB_ClearMethodState},
   {CC"isInStringTable",   CC"(Ljava/lang/String;)Z",  (void*)&WB_IsInStringTable  },
   {CC"fullGC",   CC"()V",                             (void*)&WB_FullGC },
 };
diff --git a/src/share/vm/runtime/arguments.cpp b/src/share/vm/runtime/arguments.cpp
index e7b296f..6db5ff5 100644
--- a/src/share/vm/runtime/arguments.cpp
+++ b/src/share/vm/runtime/arguments.cpp
@@ -2010,11 +2010,12 @@
   // than just disable the lock verification. This will be fixed under
   // bug 4788986.
   if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) {
-    if (VerifyGCStartAt == 0) {
+    if (VerifyDuringStartup) {
       warning("Heap verification at start-up disabled "
               "(due to current incompatibility with FLSVerifyAllHeapReferences)");
-      VerifyGCStartAt = 1;      // Disable verification at start-up
+      VerifyDuringStartup = false; // Disable verification at start-up
     }
+
     if (VerifyBeforeExit) {
       warning("Heap verification at shutdown disabled "
               "(due to current incompatibility with FLSVerifyAllHeapReferences)");
diff --git a/src/share/vm/runtime/compilationPolicy.cpp b/src/share/vm/runtime/compilationPolicy.cpp
index 713163a..71fa794 100644
--- a/src/share/vm/runtime/compilationPolicy.cpp
+++ b/src/share/vm/runtime/compilationPolicy.cpp
@@ -123,9 +123,10 @@
   }
   if (comp_level == CompLevel_all) {
     return !m->is_not_compilable(CompLevel_simple) && !m->is_not_compilable(CompLevel_full_optimization);
-  } else {
+  } else if (is_compile(comp_level)) {
     return !m->is_not_compilable(comp_level);
   }
+  return false;
 }
 
 bool CompilationPolicy::is_compilation_enabled() {
diff --git a/src/share/vm/runtime/compilationPolicy.hpp b/src/share/vm/runtime/compilationPolicy.hpp
index e53782a..6d90e04 100644
--- a/src/share/vm/runtime/compilationPolicy.hpp
+++ b/src/share/vm/runtime/compilationPolicy.hpp
@@ -96,7 +96,7 @@
   void reset_counter_for_back_branch_event(methodHandle method);
 public:
   NonTieredCompPolicy() : _compiler_count(0) { }
-  virtual CompLevel initial_compile_level() { return CompLevel_initial_compile; }
+  virtual CompLevel initial_compile_level() { return CompLevel_highest_tier; }
   virtual int compiler_count(CompLevel comp_level);
   virtual void do_safepoint_work();
   virtual void reprofile(ScopeDesc* trap_scope, bool is_osr);
diff --git a/src/share/vm/runtime/globals.hpp b/src/share/vm/runtime/globals.hpp
index 5f1e0c6..011112c 100644
--- a/src/share/vm/runtime/globals.hpp
+++ b/src/share/vm/runtime/globals.hpp
@@ -2123,6 +2123,10 @@
   product(intx, PrefetchFieldsAhead, -1,                                    \
           "How many fields ahead to prefetch in oop scan (<= 0 means off)") \
                                                                             \
+  diagnostic(bool, VerifyDuringStartup, false,                              \
+          "Verify memory system before executing any Java code "            \
+          "during VM initialization")                                       \
+                                                                            \
   diagnostic(bool, VerifyBeforeExit, trueInDebug,                           \
           "Verify system before exiting")                                   \
                                                                             \
@@ -3664,8 +3668,13 @@
   product(bool, PrintGCCause, true,                                         \
           "Include GC cause in GC logging")                                 \
                                                                             \
-  product(bool, AllowNonVirtualCalls, false,                                \
-          "Obey the ACC_SUPER flag and allow invokenonvirtual calls")
+  product(bool , AllowNonVirtualCalls, false,                               \
+          "Obey the ACC_SUPER flag and allow invokenonvirtual calls")       \
+                                                                            \
+  experimental(uintx, ArrayAllocatorMallocLimit,                            \
+          SOLARIS_ONLY(64*K) NOT_SOLARIS(max_uintx),                        \
+          "Allocation less than this value will be allocated "              \
+          "using malloc. Larger allocations will use mmap.")
 
 /*
  *  Macros for factoring of globals
diff --git a/src/share/vm/runtime/thread.cpp b/src/share/vm/runtime/thread.cpp
index 577901a..cf0297d 100644
--- a/src/share/vm/runtime/thread.cpp
+++ b/src/share/vm/runtime/thread.cpp
@@ -3446,9 +3446,9 @@
   }
 
   assert (Universe::is_fully_initialized(), "not initialized");
-  if (VerifyBeforeGC && VerifyGCStartAt == 0) {
-    Universe::heap()->prepare_for_verify();
-    Universe::verify();   // make sure we're starting with a clean slate
+  if (VerifyDuringStartup) {
+    VM_Verify verify_op(false /* silent */);   // make sure we're starting with a clean slate
+    VMThread::execute(&verify_op);
   }
 
   EXCEPTION_MARK;
diff --git a/src/share/vm/runtime/vmStructs.cpp b/src/share/vm/runtime/vmStructs.cpp
index b3e445f..b00f682 100644
--- a/src/share/vm/runtime/vmStructs.cpp
+++ b/src/share/vm/runtime/vmStructs.cpp
@@ -478,6 +478,9 @@
                                                                                                                                      \
   nonstatic_field(CardGeneration,              _rs,                                           GenRemSet*)                            \
   nonstatic_field(CardGeneration,              _bts,                                          BlockOffsetSharedArray*)               \
+  nonstatic_field(CardGeneration,              _shrink_factor,                                size_t)                                \
+  nonstatic_field(CardGeneration,              _capacity_at_prologue,                         size_t)                                \
+  nonstatic_field(CardGeneration,              _used_at_prologue,                             size_t)                                \
                                                                                                                                      \
   nonstatic_field(CardTableModRefBS,           _whole_heap,                                   const MemRegion)                       \
   nonstatic_field(CardTableModRefBS,           _guard_index,                                  const size_t)                          \
@@ -548,8 +551,6 @@
   nonstatic_field(Space,                       _bottom,                                       HeapWord*)                             \
   nonstatic_field(Space,                       _end,                                          HeapWord*)                             \
                                                                                                                                      \
-  nonstatic_field(TenuredGeneration,           _shrink_factor,                                size_t)                                \
-  nonstatic_field(TenuredGeneration,           _capacity_at_prologue,                         size_t)                                \
   nonstatic_field(ThreadLocalAllocBuffer,      _start,                                        HeapWord*)                             \
   nonstatic_field(ThreadLocalAllocBuffer,      _top,                                          HeapWord*)                             \
   nonstatic_field(ThreadLocalAllocBuffer,      _end,                                          HeapWord*)                             \
diff --git a/src/share/vm/runtime/vm_operations.cpp b/src/share/vm/runtime/vm_operations.cpp
index 99e367c..53ea0bd 100644
--- a/src/share/vm/runtime/vm_operations.cpp
+++ b/src/share/vm/runtime/vm_operations.cpp
@@ -175,7 +175,8 @@
 }
 
 void VM_Verify::doit() {
-  Universe::verify();
+  Universe::heap()->prepare_for_verify();
+  Universe::verify(_silent);
 }
 
 bool VM_PrintThreads::doit_prologue() {
diff --git a/src/share/vm/runtime/vm_operations.hpp b/src/share/vm/runtime/vm_operations.hpp
index ec3e851..c1fc536 100644
--- a/src/share/vm/runtime/vm_operations.hpp
+++ b/src/share/vm/runtime/vm_operations.hpp
@@ -300,9 +300,9 @@
 
 class VM_Verify: public VM_Operation {
  private:
-  KlassHandle _dependee;
+  bool _silent;
  public:
-  VM_Verify() {}
+  VM_Verify(bool silent) : _silent(silent) {}
   VMOp_Type type() const { return VMOp_Verify; }
   void doit();
 };
diff --git a/src/share/vm/utilities/accessFlags.hpp b/src/share/vm/utilities/accessFlags.hpp
index 3d2d9aa..99f9a33 100644
--- a/src/share/vm/utilities/accessFlags.hpp
+++ b/src/share/vm/utilities/accessFlags.hpp
@@ -194,6 +194,9 @@
   void set_is_obsolete()               { atomic_set_bits(JVM_ACC_IS_OBSOLETE);             }
   void set_is_prefixed_native()        { atomic_set_bits(JVM_ACC_IS_PREFIXED_NATIVE);      }
 
+  void clear_not_c1_compilable()       { atomic_clear_bits(JVM_ACC_NOT_C1_COMPILABLE);       }
+  void clear_not_c2_compilable()       { atomic_clear_bits(JVM_ACC_NOT_C2_COMPILABLE);       }
+  void clear_not_c2_osr_compilable()   { atomic_clear_bits(JVM_ACC_NOT_C2_OSR_COMPILABLE);   }
   // Klass* flags
   void set_has_vanilla_constructor()   { atomic_set_bits(JVM_ACC_HAS_VANILLA_CONSTRUCTOR); }
   void set_has_finalizer()             { atomic_set_bits(JVM_ACC_HAS_FINALIZER);           }
diff --git a/src/share/vm/utilities/bitMap.cpp b/src/share/vm/utilities/bitMap.cpp
index 0b12b11..152b40d 100644
--- a/src/share/vm/utilities/bitMap.cpp
+++ b/src/share/vm/utilities/bitMap.cpp
@@ -516,6 +516,10 @@
   return sum;
 }
 
+void BitMap::print_on_error(outputStream* st, const char* prefix) const {
+  st->print_cr("%s[" PTR_FORMAT ", " PTR_FORMAT ")",
+      prefix, map(), (char*)map() + (size() >> LogBitsPerByte));
+}
 
 #ifndef PRODUCT
 
diff --git a/src/share/vm/utilities/bitMap.hpp b/src/share/vm/utilities/bitMap.hpp
index 2c0975f..2486533 100644
--- a/src/share/vm/utilities/bitMap.hpp
+++ b/src/share/vm/utilities/bitMap.hpp
@@ -262,6 +262,7 @@
   bool is_full() const;
   bool is_empty() const;
 
+  void print_on_error(outputStream* st, const char* prefix) const;
 
 #ifndef PRODUCT
  public:
diff --git a/src/share/vm/utilities/globalDefinitions.hpp b/src/share/vm/utilities/globalDefinitions.hpp
index 3bf22d4..5225898 100644
--- a/src/share/vm/utilities/globalDefinitions.hpp
+++ b/src/share/vm/utilities/globalDefinitions.hpp
@@ -845,6 +845,10 @@
   return comp_level == CompLevel_highest_tier;
 }
 
+inline bool is_compile(int comp_level) {
+  return is_c1_compile(comp_level) || is_c2_compile(comp_level);
+}
+
 //----------------------------------------------------------------------------------------------------
 // 'Forward' declarations of frequently used classes
 // (in order to reduce interface dependencies & reduce
diff --git a/src/share/vm/utilities/taskqueue.hpp b/src/share/vm/utilities/taskqueue.hpp
index dd98186..980b7e9 100644
--- a/src/share/vm/utilities/taskqueue.hpp
+++ b/src/share/vm/utilities/taskqueue.hpp
@@ -253,6 +253,7 @@
 
 template <class E, MEMFLAGS F, unsigned int N = TASKQUEUE_SIZE>
 class GenericTaskQueue: public TaskQueueSuper<N, F> {
+  ArrayAllocator<E, F> _array_allocator;
 protected:
   typedef typename TaskQueueSuper<N, F>::Age Age;
   typedef typename TaskQueueSuper<N, F>::idx_t idx_t;
@@ -314,7 +315,7 @@
 
 template<class E, MEMFLAGS F, unsigned int N>
 void GenericTaskQueue<E, F, N>::initialize() {
-  _elems = NEW_C_HEAP_ARRAY(E, N, F);
+  _elems = _array_allocator.allocate(N);
 }
 
 template<class E, MEMFLAGS F, unsigned int N>
diff --git a/src/share/vm/utilities/vmError.cpp b/src/share/vm/utilities/vmError.cpp
index d8fe93b..e1608ca 100644
--- a/src/share/vm/utilities/vmError.cpp
+++ b/src/share/vm/utilities/vmError.cpp
@@ -685,13 +685,7 @@
   STEP(190, "(printing heap information)" )
 
      if (_verbose && Universe::is_fully_initialized()) {
-       // Print heap information before vm abort. As we'd like as much
-       // information as possible in the report we ask for the
-       // extended (i.e., more detailed) version.
-       Universe::print_on(st, true /* extended */);
-       st->cr();
-
-       Universe::heap()->barrier_set()->print_on(st);
+       Universe::heap()->print_on_error(st);
        st->cr();
 
        st->print_cr("Polling page: " INTPTR_FORMAT, os::get_polling_page());
diff --git a/test/compiler/6863420/Test.java b/test/compiler/6863420/Test.java
index 072e7f3..11d91d3 100644
--- a/test/compiler/6863420/Test.java
+++ b/test/compiler/6863420/Test.java
@@ -27,17 +27,35 @@
  * @bug 6863420
  * @summary os::javaTimeNanos() go backward on Solaris x86
  *
- * @run main/othervm Test
+ * Notice the internal timeout in timeout thread Test.TOT.
+ * @run main/othervm/timeout=300 Test
  */
 
 public class Test {
+
+    static final int INTERNAL_TIMEOUT=240;
+    static class TOT extends Thread {
+       public void run() {
+           try {
+               Thread.sleep(INTERNAL_TIMEOUT*1000);
+           } catch (InterruptedException ex) {
+           }
+           done = true;
+       }
+    }
+
     static long value = 0;
     static boolean got_backward_time = false;
+    static volatile boolean done = false;
 
     public static void main(String args[]) {
         final int count = 100000;
 
-        for (int numThreads = 1; numThreads <= 32; numThreads++) {
+        TOT tot = new TOT();
+        tot.setDaemon(true);
+        tot.start();
+
+        for (int numThreads = 1; !done && numThreads <= 32; numThreads++) {
             final int numRuns = 1;
             for (int t=1; t <= numRuns; t++) {
                 final int curRun = t;
@@ -48,7 +66,7 @@
                     Runnable thread =
                         new Runnable() {
                             public void run() {
-                                for (long l = 0; l < 100000; l++) {
+                                for (long l = 0; !done && l < 100000; l++) {
                                     final long start = System.nanoTime();
                                     if (value == 12345678) {
                                         System.out.println("Wow!");
diff --git a/test/compiler/8011706/Test8011706.java b/test/compiler/8011706/Test8011706.java
new file mode 100644
index 0000000..4c31737
--- /dev/null
+++ b/test/compiler/8011706/Test8011706.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 8011706
+ * @summary loop invariant code motion may move load before store to the same field
+ * @run main/othervm -XX:-UseOnStackReplacement -XX:-BackgroundCompilation Test8011706
+ *
+ */
+
+public class Test8011706 {
+    int[] array;
+
+    void m(boolean test, int[] array1, int[] array2) {
+        int i = 0;
+        if (test) {
+            array = array1;
+        } else {
+            array = array2;
+        }
+
+        while(true) {
+            int v = array[i];
+            i++;
+            if (i >= 10) return;
+        }
+    }
+
+    static public void main(String[] args) {
+        int[] new_array = new int[10];
+        Test8011706 ti = new Test8011706();
+        boolean failed = false;
+        try {
+            for (int i = 0; i < 10000; i++) {
+                ti.array = null;
+                ti.m(true, new_array, new_array);
+            }
+        } catch(NullPointerException ex) {
+            throw new RuntimeException("TEST FAILED", ex);
+        }
+        System.out.println("TEST PASSED");
+    }
+
+}
diff --git a/test/compiler/whitebox/ClearMethodStateTest.java b/test/compiler/whitebox/ClearMethodStateTest.java
new file mode 100644
index 0000000..a117e1b
--- /dev/null
+++ b/test/compiler/whitebox/ClearMethodStateTest.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test ClearMethodStateTest
+ * @library /testlibrary /testlibrary/whitebox
+ * @build ClearMethodStateTest
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox
+ * @run main/othervm -Xbootclasspath/a:. -Xmixed -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI ClearMethodStateTest
+ * @author igor.ignatyev@oracle.com
+ */
+public class ClearMethodStateTest extends CompilerWhiteBoxTest {
+    public static void main(String[] args) throws Exception {
+        // to prevent inlining #method into #compile() and #test()
+        WHITE_BOX.testSetDontInlineMethod(METHOD, true);
+        new ClearMethodStateTest().runTest();
+    }
+
+    protected void test() throws Exception {
+        checkNotCompiled(METHOD);
+        compile();
+        checkCompiled(METHOD);
+        WHITE_BOX.clearMethodState(METHOD);
+        WHITE_BOX.deoptimizeMethod(METHOD);
+        checkNotCompiled(METHOD);
+
+
+        if (!TIERED_COMPILATION) {
+            WHITE_BOX.clearMethodState(METHOD);
+            compile(COMPILE_THRESHOLD);
+            checkCompiled(METHOD);
+
+            WHITE_BOX.deoptimizeMethod(METHOD);
+            checkNotCompiled(METHOD);
+            WHITE_BOX.clearMethodState(METHOD);
+
+            if (COMPILE_THRESHOLD > 1) {
+                compile(COMPILE_THRESHOLD - 1);
+                checkNotCompiled(METHOD);
+            } else {
+               System.err.println("Warning: 'CompileThreshold' <= 1");
+            }
+
+            method();
+            checkCompiled(METHOD);
+        } else {
+            System.err.println(
+                    "Warning: part of test is not applicable in Tiered");
+        }
+    }
+}
diff --git a/test/compiler/whitebox/CompilerWhiteBoxTest.java b/test/compiler/whitebox/CompilerWhiteBoxTest.java
index 02b9281..07b1965 100644
--- a/test/compiler/whitebox/CompilerWhiteBoxTest.java
+++ b/test/compiler/whitebox/CompilerWhiteBoxTest.java
@@ -37,6 +37,8 @@
             = Integer.parseInt(getVMOption("CompileThreshold", "10000"));
     protected static final boolean BACKGROUND_COMPILATION
             = Boolean.valueOf(getVMOption("BackgroundCompilation", "true"));
+    protected static final boolean TIERED_COMPILATION
+            = Boolean.valueOf(getVMOption("TieredCompilation", "false"));
 
     protected static Method getMethod(String name) {
         try {
@@ -81,6 +83,9 @@
     }
 
     protected static void checkNotCompiled(Method method) {
+        if (WHITE_BOX.isMethodQueuedForCompilation(method)) {
+            throw new RuntimeException(method + " must not be in queue");
+        }
         if (WHITE_BOX.isMethodCompiled(method)) {
             throw new RuntimeException(method + " must be not compiled");
         }
@@ -139,8 +144,11 @@
     protected abstract void test() throws Exception;
 
     protected final int compile() {
+        return compile(Math.max(COMPILE_THRESHOLD, 150000));
+    }
+
+    protected final int compile(int count) {
         int result = 0;
-        int count = Math.max(COMPILE_THRESHOLD, 150000);
         for (int i = 0; i < count; ++i) {
             result += method();
         }
diff --git a/test/compiler/whitebox/DeoptimizeAllTest.java b/test/compiler/whitebox/DeoptimizeAllTest.java
index fdf498c..b6bdaf1 100644
--- a/test/compiler/whitebox/DeoptimizeAllTest.java
+++ b/test/compiler/whitebox/DeoptimizeAllTest.java
@@ -33,7 +33,7 @@
 
     public static void main(String[] args) throws Exception {
         // to prevent inlining #method into #compile()
-        WHITE_BOX.setDontInlineMethod(METHOD, true);
+        WHITE_BOX.testSetDontInlineMethod(METHOD, true);
         new DeoptimizeAllTest().runTest();
     }
 
diff --git a/test/compiler/whitebox/DeoptimizeMethodTest.java b/test/compiler/whitebox/DeoptimizeMethodTest.java
index 7894c52..a5053ae 100644
--- a/test/compiler/whitebox/DeoptimizeMethodTest.java
+++ b/test/compiler/whitebox/DeoptimizeMethodTest.java
@@ -33,7 +33,7 @@
 
     public static void main(String[] args) throws Exception {
         // to prevent inlining #method into #compile()
-        WHITE_BOX.setDontInlineMethod(METHOD, true);
+        WHITE_BOX.testSetDontInlineMethod(METHOD, true);
         new DeoptimizeMethodTest().runTest();
     }
 
diff --git a/test/compiler/whitebox/EnqueueMethodForCompilationTest.java b/test/compiler/whitebox/EnqueueMethodForCompilationTest.java
new file mode 100644
index 0000000..a4464f0
--- /dev/null
+++ b/test/compiler/whitebox/EnqueueMethodForCompilationTest.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test EnqueueMethodForCompilationTest
+ * @library /testlibrary /testlibrary/whitebox
+ * @build EnqueueMethodForCompilationTest
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox
+ * @run main/othervm -Xbootclasspath/a:. -Xmixed -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI EnqueueMethodForCompilationTest
+ * @author igor.ignatyev@oracle.com
+ */
+public class EnqueueMethodForCompilationTest extends CompilerWhiteBoxTest {
+    public static void main(String[] args) throws Exception {
+        // to prevent inlining #method into #compile()
+        WHITE_BOX.testSetDontInlineMethod(METHOD, true);
+        new EnqueueMethodForCompilationTest().runTest();
+    }
+
+    protected void test() throws Exception {
+        checkNotCompiled(METHOD);
+
+        WHITE_BOX.enqueueMethodForCompilation(METHOD, 0);
+        if (WHITE_BOX.isMethodCompilable(METHOD, 0)) {
+          throw new RuntimeException(METHOD + " is compilable at level 0");
+        }
+        checkNotCompiled(METHOD);
+
+        WHITE_BOX.enqueueMethodForCompilation(METHOD, -1);
+        checkNotCompiled(METHOD);
+
+        WHITE_BOX.enqueueMethodForCompilation(METHOD, 5);
+        if (!WHITE_BOX.isMethodCompilable(METHOD, 5)) {
+          checkNotCompiled(METHOD);
+          compile();
+          checkCompiled(METHOD);
+        } else {
+          checkCompiled(METHOD);
+        }
+
+        int compLevel = WHITE_BOX.getMethodCompilationLevel(METHOD);
+        WHITE_BOX.deoptimizeMethod(METHOD);
+        checkNotCompiled(METHOD);
+
+        WHITE_BOX.enqueueMethodForCompilation(METHOD, compLevel);
+        checkCompiled(METHOD);
+        WHITE_BOX.deoptimizeMethod(METHOD);
+        checkNotCompiled(METHOD);
+
+        compile();
+        checkCompiled(METHOD);
+        WHITE_BOX.deoptimizeMethod(METHOD);
+        checkNotCompiled(METHOD);
+    }
+}
diff --git a/test/compiler/whitebox/IsMethodCompilableTest.java b/test/compiler/whitebox/IsMethodCompilableTest.java
index 374d484..8f785c2 100644
--- a/test/compiler/whitebox/IsMethodCompilableTest.java
+++ b/test/compiler/whitebox/IsMethodCompilableTest.java
@@ -45,7 +45,7 @@
 
     public static void main(String[] args) throws Exception {
         // to prevent inlining #method into #compile()
-        WHITE_BOX.setDontInlineMethod(METHOD, true);
+        WHITE_BOX.testSetDontInlineMethod(METHOD, true);
         new IsMethodCompilableTest().runTest();
     }
 
@@ -60,26 +60,47 @@
                     "Warning: test is not applicable if PerMethodRecompilationCutoff == Inf");
             return;
         }
-        boolean madeNotCompilable = false;
 
-        for (long i = 0; i < PER_METHOD_RECOMPILATION_CUTOFF; ++i) {
-            compile();
-            waitBackgroundCompilation(METHOD);
-            WHITE_BOX.deoptimizeMethod(METHOD);
-            if (!WHITE_BOX.isMethodCompilable(METHOD)) {
-                madeNotCompilable = true;
-                break;
-            }
+        // deoptimze 'PerMethodRecompilationCutoff' times and clear state
+        for (long i = 0L, n = PER_METHOD_RECOMPILATION_CUTOFF - 1; i < n; ++i) {
+            compileAndDeoptimaze();
         }
-        if (!madeNotCompilable) {
+        if (!WHITE_BOX.isMethodCompilable(METHOD)) {
+            throw new RuntimeException(METHOD + " is not compilable after "
+                    + (PER_METHOD_RECOMPILATION_CUTOFF - 1) + " iterations");
+        }
+        WHITE_BOX.clearMethodState(METHOD);
+
+        // deoptimze 'PerMethodRecompilationCutoff' + 1 times
+        long i;
+        for (i = 0L; i < PER_METHOD_RECOMPILATION_CUTOFF
+                && WHITE_BOX.isMethodCompilable(METHOD); ++i) {
+            compileAndDeoptimaze();
+        }
+        if (i != PER_METHOD_RECOMPILATION_CUTOFF) {
+           throw new RuntimeException(METHOD + " is not compilable after "
+                   + i + " iterations, but must only after "
+                   + PER_METHOD_RECOMPILATION_CUTOFF);
+        }
+        if (WHITE_BOX.isMethodCompilable(METHOD)) {
             throw new RuntimeException(METHOD + " is still compilable after "
                     + PER_METHOD_RECOMPILATION_CUTOFF + " iterations");
         }
         compile();
-        if (WHITE_BOX.isMethodCompiled(METHOD)) {
-            printInfo(METHOD);
-            throw new RuntimeException(
-                    METHOD + " is not compilable but compiled");
+        checkNotCompiled(METHOD);
+
+        WHITE_BOX.clearMethodState(METHOD);
+        if (!WHITE_BOX.isMethodCompilable(METHOD)) {
+            throw new RuntimeException(METHOD
+                    + " is compilable after clearMethodState()");
         }
+        compile();
+        checkCompiled(METHOD);
+    }
+
+    private void compileAndDeoptimaze() throws Exception {
+        compile();
+        waitBackgroundCompilation(METHOD);
+        WHITE_BOX.deoptimizeMethod(METHOD);
     }
 }
diff --git a/test/compiler/whitebox/MakeMethodNotCompilableTest.java b/test/compiler/whitebox/MakeMethodNotCompilableTest.java
index 0b9144c..19aaf51 100644
--- a/test/compiler/whitebox/MakeMethodNotCompilableTest.java
+++ b/test/compiler/whitebox/MakeMethodNotCompilableTest.java
@@ -33,7 +33,7 @@
 
     public static void main(String[] args) throws Exception {
         // to prevent inlining #method into #compile()
-        WHITE_BOX.setDontInlineMethod(METHOD, true);
+        WHITE_BOX.testSetDontInlineMethod(METHOD, true);
         new MakeMethodNotCompilableTest().runTest();
     }
 
@@ -46,9 +46,6 @@
             throw new RuntimeException(METHOD + " must be not compilable");
         }
         compile();
-        if (WHITE_BOX.isMethodQueuedForCompilation(METHOD)) {
-            throw new RuntimeException(METHOD + " must not be in queue");
-        }
         checkNotCompiled(METHOD);
         if (WHITE_BOX.isMethodCompilable(METHOD)) {
             throw new RuntimeException(METHOD + " must be not compilable");
diff --git a/test/compiler/whitebox/SetDontInlineMethodTest.java b/test/compiler/whitebox/SetDontInlineMethodTest.java
index 1ab5421..a85421a 100644
--- a/test/compiler/whitebox/SetDontInlineMethodTest.java
+++ b/test/compiler/whitebox/SetDontInlineMethodTest.java
@@ -36,23 +36,23 @@
     }
 
     protected void test() throws Exception {
-        if (WHITE_BOX.setDontInlineMethod(METHOD, true)) {
+        if (WHITE_BOX.testSetDontInlineMethod(METHOD, true)) {
             throw new RuntimeException("on start " + METHOD
                     + " must be inlineable");
         }
-        if (!WHITE_BOX.setDontInlineMethod(METHOD, true)) {
+        if (!WHITE_BOX.testSetDontInlineMethod(METHOD, true)) {
             throw new RuntimeException("after first change to true " + METHOD
                     + " must be not inlineable");
         }
-        if (!WHITE_BOX.setDontInlineMethod(METHOD, false)) {
+        if (!WHITE_BOX.testSetDontInlineMethod(METHOD, false)) {
             throw new RuntimeException("after second change to true " + METHOD
                     + " must be still not inlineable");
         }
-        if (WHITE_BOX.setDontInlineMethod(METHOD, false)) {
+        if (WHITE_BOX.testSetDontInlineMethod(METHOD, false)) {
             throw new RuntimeException("after first change to false" + METHOD
                     + " must be inlineable");
         }
-        if (WHITE_BOX.setDontInlineMethod(METHOD, false)) {
+        if (WHITE_BOX.testSetDontInlineMethod(METHOD, false)) {
             throw new RuntimeException("after second change to false " + METHOD
                     + " must be inlineable");
         }
diff --git a/test/compiler/whitebox/SetForceInlineMethodTest.java b/test/compiler/whitebox/SetForceInlineMethodTest.java
new file mode 100644
index 0000000..cb4a7b0
--- /dev/null
+++ b/test/compiler/whitebox/SetForceInlineMethodTest.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test SetForceInlineMethodTest
+ * @library /testlibrary /testlibrary/whitebox
+ * @build SetForceInlineMethodTest
+ * @run main ClassFileInstaller sun.hotspot.WhiteBox
+ * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI SetForceInlineMethodTest
+ * @author igor.ignatyev@oracle.com
+ */
+public class SetForceInlineMethodTest extends CompilerWhiteBoxTest {
+
+    public static void main(String[] args) throws Exception {
+        new SetForceInlineMethodTest().runTest();
+    }
+
+    protected void test() throws Exception {
+        if (WHITE_BOX.testSetForceInlineMethod(METHOD, true)) {
+            throw new RuntimeException("on start " + METHOD
+                    + " must be not force inlineable");
+        }
+        if (!WHITE_BOX.testSetForceInlineMethod(METHOD, true)) {
+            throw new RuntimeException("after first change to true " + METHOD
+                    + " must be force inlineable");
+        }
+        if (!WHITE_BOX.testSetForceInlineMethod(METHOD, false)) {
+            throw new RuntimeException("after second change to true " + METHOD
+                    + " must be still force inlineable");
+        }
+        if (WHITE_BOX.testSetForceInlineMethod(METHOD, false)) {
+            throw new RuntimeException("after first change to false" + METHOD
+                    + " must be not force inlineable");
+        }
+        if (WHITE_BOX.testSetForceInlineMethod(METHOD, false)) {
+            throw new RuntimeException("after second change to false " + METHOD
+                    + " must be not force inlineable");
+        }
+    }
+}
diff --git a/test/gc/6941923/Test6941923.java b/test/gc/6941923/Test6941923.java
new file mode 100644
index 0000000..16a2ffd
--- /dev/null
+++ b/test/gc/6941923/Test6941923.java
@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test Test6941923.java
+ * @bug 6941923
+ * @summary test flags for gc log rotation
+ * @library /testlibrary
+ * @run main/othervm/timeout=600 Test6941923
+ *
+ */
+import com.oracle.java.testlibrary.*;
+import java.io.File;
+import java.io.FilenameFilter;
+import java.util.ArrayList;
+import java.util.Arrays;
+
+class GCLoggingGenerator {
+
+    public static void main(String[] args) throws Exception {
+
+        long sizeOfLog = Long.parseLong(args[0]);
+        long lines = sizeOfLog / 80;
+        // full.GC generates ad least 1-line which is not shorter then 80 chars
+        // for some GC 2 shorter lines are generated
+        for (long i = 0; i < lines; i++) {
+            System.gc();
+        }
+    }
+}
+
+public class Test6941923 {
+
+    static final File currentDirectory = new File(".");
+    static final String logFileName = "test.log";
+    static final int logFileSizeK = 16;
+    static FilenameFilter logFilter = new FilenameFilter() {
+        @Override
+        public boolean accept(File dir, String name) {
+            return name.startsWith(logFileName);
+        }
+    };
+
+    public static void cleanLogs() {
+        for (File log : currentDirectory.listFiles(logFilter)) {
+            if (!log.delete()) {
+                throw new Error("Unable to delete " + log.getAbsolutePath());
+            }
+        }
+    }
+
+    public static void runTest(int numberOfFiles) throws Exception {
+
+        ArrayList<String> args = new ArrayList();
+        String[] logOpts = new String[]{
+            "-cp", System.getProperty("java.class.path"),
+            "-Xloggc:" + logFileName,
+            "-XX:-DisableExplicitGC", // to sure that System.gc() works
+            "-XX:+PrintGC", "-XX:+PrintGCDetails", "-XX:+UseGCLogFileRotation",
+            "-XX:NumberOfGCLogFiles=" + numberOfFiles,
+            "-XX:GCLogFileSize=" + logFileSizeK + "K", "-Xmx128M"};
+        // System.getProperty("test.java.opts") is '' if no options is set
+        // need to skip such empty
+        String[] externalVMopts = System.getProperty("test.java.opts").length() == 0
+                ? new String[0]
+                : System.getProperty("test.java.opts").split(" ");
+        args.addAll(Arrays.asList(externalVMopts));
+        args.addAll(Arrays.asList(logOpts));
+        args.add(GCLoggingGenerator.class.getName());
+        args.add(String.valueOf(numberOfFiles * logFileSizeK * 1024));
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args.toArray(new String[0]));
+        pb.redirectErrorStream(true);
+        pb.redirectOutput(new File(GCLoggingGenerator.class.getName() + ".log"));
+        Process process = pb.start();
+        int result = process.waitFor();
+        if (result != 0) {
+            throw new Error("Unexpected exit code = " + result);
+        }
+        File[] logs = currentDirectory.listFiles(logFilter);
+        int smallFilesNumber = 0;
+        for (File log : logs) {
+            if (log.length() < logFileSizeK * 1024) {
+                smallFilesNumber++;
+            }
+        }
+        if (logs.length != numberOfFiles) {
+            throw new Error("There are only " + logs.length + " logs instead " + numberOfFiles);
+        }
+        if (smallFilesNumber > 1) {
+            throw new Error("There should maximum one log with size < " + logFileSizeK + "K");
+        }
+    }
+
+    public static void main(String[] args) throws Exception {
+        cleanLogs();
+        runTest(1);
+        cleanLogs();
+        runTest(3);
+        cleanLogs();
+    }
+}
diff --git a/test/gc/6941923/test6941923.sh b/test/gc/6941923/test6941923.sh
deleted file mode 100644
index 9b33e32..0000000
--- a/test/gc/6941923/test6941923.sh
+++ /dev/null
@@ -1,166 +0,0 @@
-##
-## @test @(#)test6941923.sh
-## @bug 6941923 
-## @summary test new added flags for gc log rotation 
-## @author yqi 
-## @run shell test6941923.sh
-##
-## some tests require path to find test source dir
-if [ "${TESTSRC}" = "" ]
-then
-  TESTSRC=${PWD}
-  echo "TESTSRC not set.  Using "${TESTSRC}" as default"
-fi
-echo "TESTSRC=${TESTSRC}"
-## Adding common setup Variables for running shell tests.
-. ${TESTSRC}/../../test_env.sh
-
-## skip on windows
-OS=`uname -s`
-case "$OS" in
-  Windows_* | CYGWIN_* )
-    echo "Test skipped for Windows"
-    exit 0 
-    ;;
-esac
-
-# create a small test case
-testname="Test"
-if [ -e ${testname}.java ]; then
-  rm -rf ${testname}.*
-fi
-
-cat >> ${testname}.java << __EOF__
-import java.util.Vector;
-
-public class Test implements Runnable
-{
-  private boolean _should_stop = false;
-
-  public static void main(String[] args) throws Exception {
-
-    long limit = Long.parseLong(args[0]) * 60L * 1000L;   // minutes
-    Test t = new Test();
-    t.set_stop(false);
-    Thread thr = new Thread(t);
-    thr.start();
-
-    long time1 = System.currentTimeMillis();
-    long time2 = System.currentTimeMillis();
-    while (time2 - time1 < limit) {
-      try {
-        Thread.sleep(2000); // 2 seconds
-      }
-      catch(Exception e) {}
-      time2 = System.currentTimeMillis();
-      System.out.print("\r... " + (time2 - time1)/1000 + " seconds");
-    }
-    System.out.println();
-    t.set_stop(true);
-  }
-  public void set_stop(boolean value) { _should_stop = value; }
-  public void run() {
-    int cap = 20000;
-    int fix_size = 2048;
-    int loop = 0;
-    Vector< byte[] > v = new Vector< byte[] >(cap);
-    while(!_should_stop) {
-      byte[] g = new byte[fix_size];
-      v.add(g);
-      loop++;
-      if (loop > cap) {
-         v = null;
-         cap *= 2;
-         if (cap > 80000) cap = 80000;
-         v = new Vector< byte[] >(cap);
-      }
-    }
-  }
-}
-__EOF__
-
-msgsuccess="succeeded"
-msgfail="failed"
-gclogsize="16K"
-filesize=$((16*1024))
-${COMPILEJAVA}/bin/javac ${TESTJAVACOPTS} ${testname}.java > $NULL 2>&1
-
-if [ $? != 0 ]; then
-  echo "${COMPILEJAVA}/bin/javac ${testname}.java $fail"
-  exit -1
-fi
-
-# test for 2 minutes, it will complete circulation of gc log rotation
-tts=2
-logfile="test.log"
-hotspotlog="hotspot.log"
-
-if [ -e $logfile  ]; then
-  rm -rf $logfile
-fi
-
-#also delete $hotspotlog if it exists
-if [ -f $hotspotlog ]; then 
-  rm -rf $hotspotlog
-fi
-
-options="-Xloggc:$logfile -XX:+UseConcMarkSweepGC -XX:+PrintGC -XX:+PrintGCDetails -XX:+UseGCLogFileRotation  -XX:NumberOfGCLogFiles=1 -XX:GCLogFileSize=$gclogsize"
-echo "Test gc log rotation in same file, wait for $tts minutes ...."
-${TESTJAVA}/bin/java $options $testname $tts
-if [ $? != 0 ]; then
-  echo "$msgfail"
-  exit -1
-fi
-
-# rotation file will be $logfile.0 
-if [ -f $logfile.0 ]; then
-  outfilesize=`ls -l $logfile.0 | awk '{print $5 }'`
-  if [ $((outfilesize)) -ge $((filesize)) ]; then
-    echo $msgsuccess
-  else
-    echo $msgfail
-  fi
-else 
-  echo $msgfail
-  exit -1
-fi
-
-# delete log file 
-rm -rf $logfile.0
-if [ -f $hotspotlog ]; then
-  rm -rf $hotspotlog
-fi
-
-#multiple log files
-numoffiles=3
-options="-Xloggc:$logfile -XX:+UseConcMarkSweepGC -XX:+PrintGC -XX:+PrintGCDetails -XX:+UseGCLogFileRotation  -XX:NumberOfGCLogFiles=$numoffiles -XX:GCLogFileSize=$gclogsize"
-echo "Test gc log rotation in $numoffiles files, wait for $tts minutes ...."
-${TESTJAVA}/bin/java $options $testname $tts
-if [ $? != 0 ]; then
-  echo "$msgfail"
-  exit -1
-fi
-
-atleast=0    # at least size of numoffile-1 files >= $gclogsize
-tk=0
-while [ $(($tk)) -lt $(($numoffiles)) ]
-do
-  if [ -f $logfile.$tk ]; then
-    outfilesize=`ls -l $logfile.$tk | awk '{ print $5 }'`
-    if [ $(($outfilesize)) -ge $(($filesize)) ]; then
-      atleast=$((atleast+1))
-    fi
-  fi
-  tk=$((tk+1))
-done
-
-rm -rf $logfile.*
-rm -rf $testname.*
-rm -rf $hotspotlog
-
-if [ $(($atleast)) -ge $(($numoffiles-1)) ]; then
-  echo $msgsuccess
-else
-  echo $msgfail
-  exit -1
-fi
diff --git a/test/gc/TestVerifyBeforeGCDuringStartup.java b/test/gc/TestVerifyDuringStartup.java
similarity index 86%
rename from test/gc/TestVerifyBeforeGCDuringStartup.java
rename to test/gc/TestVerifyDuringStartup.java
index 109e45e..f0796f3 100644
--- a/test/gc/TestVerifyBeforeGCDuringStartup.java
+++ b/test/gc/TestVerifyDuringStartup.java
@@ -21,23 +21,23 @@
  * questions.
  */
 
-/* @test TestVerifyBeforeGCDuringStartup.java
+/* @test TestVerifyDuringStartup.java
  * @key gc
  * @bug 8010463
- * @summary Simple test run with -XX:+VerifyBeforeGC -XX:-UseTLAB to verify 8010463
+ * @summary Simple test run with -XX:+VerifyDuringStartup -XX:-UseTLAB to verify 8010463
  * @library /testlibrary
  */
 
 import com.oracle.java.testlibrary.OutputAnalyzer;
 import com.oracle.java.testlibrary.ProcessTools;
 
-public class TestVerifyBeforeGCDuringStartup {
+public class TestVerifyDuringStartup {
   public static void main(String args[]) throws Exception {
     ProcessBuilder pb =
       ProcessTools.createJavaProcessBuilder(System.getProperty("test.vm.opts"),
                                             "-XX:-UseTLAB",
                                             "-XX:+UnlockDiagnosticVMOptions",
-                                            "-XX:+VerifyBeforeGC", "-version");
+                                            "-XX:+VerifyDuringStartup", "-version");
     OutputAnalyzer output = new OutputAnalyzer(pb.start());
     output.shouldContain("[Verifying");
     output.shouldHaveExitValue(0);
diff --git a/test/gc/metaspace/G1AddMetaspaceDependency.java b/test/gc/metaspace/G1AddMetaspaceDependency.java
new file mode 100644
index 0000000..39716b9
--- /dev/null
+++ b/test/gc/metaspace/G1AddMetaspaceDependency.java
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test G1AddMetaspaceDependency
+ * @bug 8010196
+ * @summary Checks that we don't get locking problems when adding metaspace dependencies with the G1 update buffer monitor
+ * @run main/othervm -XX:+UseG1GC -XX:G1UpdateBufferSize=1 G1AddMetaspaceDependency
+ */
+
+import java.io.InputStream;
+
+public class G1AddMetaspaceDependency {
+
+  static byte[] getClassBytes(String name) {
+    byte[] b = null;
+    try (InputStream is = ClassLoader.getSystemResourceAsStream(name)) {
+      byte[] tmp = new byte[is.available()];
+      is.read(tmp);
+      b = tmp;
+    } finally {
+      if (b == null) {
+        throw new RuntimeException("Unable to load class file");
+      }
+      return b;
+    }
+  }
+
+  static final String a_name = G1AddMetaspaceDependency.class.getName() + "$A";
+  static final String b_name = G1AddMetaspaceDependency.class.getName() + "$B";
+
+  public static void main(String... args) throws Exception {
+    final byte[] a_bytes = getClassBytes(a_name + ".class");
+    final byte[] b_bytes = getClassBytes(b_name + ".class");
+
+    for (int i = 0; i < 1000; i += 1) {
+      runTest(a_bytes, b_bytes);
+    }
+  }
+
+  static class Loader extends ClassLoader {
+    private final String myClass;
+    private final byte[] myBytes;
+    private final String friendClass;
+    private final ClassLoader friendLoader;
+
+    Loader(String myClass, byte[] myBytes,
+           String friendClass, ClassLoader friendLoader) {
+      this.myClass = myClass;
+      this.myBytes = myBytes;
+      this.friendClass = friendClass;
+      this.friendLoader = friendLoader;
+    }
+
+    Loader(String myClass, byte[] myBytes) {
+      this(myClass, myBytes, null, null);
+    }
+
+    @Override
+    public Class<?> loadClass(String name) throws ClassNotFoundException {
+      Class<?> c = findLoadedClass(name);
+      if (c != null) {
+        return c;
+      }
+
+      if (name.equals(friendClass)) {
+        return friendLoader.loadClass(name);
+      }
+
+      if (name.equals(myClass)) {
+        c = defineClass(name, myBytes, 0, myBytes.length);
+        resolveClass(c);
+        return c;
+      }
+
+      return findSystemClass(name);
+    }
+
+  }
+
+  private static void runTest(final byte[] a_bytes, final byte[] b_bytes) throws Exception {
+    Loader a_loader = new Loader(a_name, a_bytes);
+    Loader b_loader = new Loader(b_name, b_bytes, a_name, a_loader);
+    Loader c_loader = new Loader(b_name, b_bytes, a_name, a_loader);
+    Loader d_loader = new Loader(b_name, b_bytes, a_name, a_loader);
+    Loader e_loader = new Loader(b_name, b_bytes, a_name, a_loader);
+    Loader f_loader = new Loader(b_name, b_bytes, a_name, a_loader);
+    Loader g_loader = new Loader(b_name, b_bytes, a_name, a_loader);
+
+    byte[] b = new byte[20 * 2 << 20];
+    Class<?> c;
+    c = b_loader.loadClass(b_name);
+    c = c_loader.loadClass(b_name);
+    c = d_loader.loadClass(b_name);
+    c = e_loader.loadClass(b_name);
+    c = f_loader.loadClass(b_name);
+    c = g_loader.loadClass(b_name);
+  }
+  public class A {
+  }
+  class B extends A {
+  }
+}
diff --git a/test/testlibrary/whitebox/sun/hotspot/WhiteBox.java b/test/testlibrary/whitebox/sun/hotspot/WhiteBox.java
index 73286e2..400bff7 100644
--- a/test/testlibrary/whitebox/sun/hotspot/WhiteBox.java
+++ b/test/testlibrary/whitebox/sun/hotspot/WhiteBox.java
@@ -91,13 +91,19 @@
   // Compiler
   public native void    deoptimizeAll();
   public native boolean isMethodCompiled(Method method);
-  public native boolean isMethodCompilable(Method method);
+  public boolean isMethodCompilable(Method method) {
+      return isMethodCompilable(method, -1 /*any*/);
+  }
+  public native boolean isMethodCompilable(Method method, int compLevel);
   public native boolean isMethodQueuedForCompilation(Method method);
   public native int     deoptimizeMethod(Method method);
   public native void    makeMethodNotCompilable(Method method);
   public native int     getMethodCompilationLevel(Method method);
-  public native boolean setDontInlineMethod(Method method, boolean value);
+  public native boolean testSetDontInlineMethod(Method method, boolean value);
   public native int     getCompileQueuesSize();
+  public native boolean testSetForceInlineMethod(Method method, boolean value);
+  public native boolean enqueueMethodForCompilation(Method method, int compLevel);
+  public native void    clearMethodState(Method method);
 
   //Intered strings
   public native boolean isInStringTable(String str);