| /* |
| * Copyright (c) 2007, 2018, 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 |
| * |
| * @summary converted from VM Testbase nsk/jdi/ReferenceType/instances/instances001. |
| * VM Testbase keywords: [quick, jpda, jdi, feature_jdk6_jpda, vm6] |
| * VM Testbase readme: |
| * DESCRIPTION |
| * Test checks behaviour of ReferenceType.instances, VirtualMachine.instanceCounts |
| * in cases when object is reacheable via following types of references: |
| * - strong |
| * - soft |
| * - weak |
| * - phantom |
| * - jni local |
| * - jni global |
| * - jni weak |
| * Test is executed for following subclasses of ReferenceType: |
| * - ArrayType |
| * - InterfaceType(for InterfaceType methof instances() should always return empty list) |
| * The test scenario is following: |
| * - Debugger VM |
| * - inititate creation instances of sublcass of tested class to ensure that instances of subclasses are not returned by ReferenceType.instances() |
| * - Debugger VM |
| * for refererence_type in <Strong, JNI_Local_Ref, JNI_Global_Ref, JNI_Weak_Ref, PhantomReference, SoftReference, WeakReference> |
| * do |
| * - initiate creation test class instances of type 'refererence_type' |
| * - check the number of instances is correct |
| * - initiate deletion of some referreres(making them unreachable) |
| * - check the number of instances is correct |
| * done |
| * |
| * @requires !vm.graal.enabled |
| * @library /vmTestbase |
| * /test/lib |
| * @run driver jdk.test.lib.FileInstaller . . |
| * @build nsk.jdi.ReferenceType.instances.instances001.instances001 |
| * nsk.share.jdi.TestClass1 |
| * nsk.share.jdi.TestClass2 |
| * nsk.share.jdi.TestInterfaceImplementer1 |
| * @run main/othervm/native PropertyResolvingWrapper |
| * nsk.jdi.ReferenceType.instances.instances001.instances001 |
| * -verbose |
| * -arch=${os.family}-${os.simpleArch} |
| * -waittime=5 |
| * -debugee.vmkind=java |
| * -transport.address=dynamic |
| * "-debugee.vmkeys=-Xmx256M ${test.vm.opts} ${test.java.opts}" |
| */ |
| |
| package nsk.jdi.ReferenceType.instances.instances001; |
| |
| import java.io.PrintStream; |
| import java.util.*; |
| import com.sun.jdi.*; |
| |
| import nsk.share.Consts; |
| import nsk.share.ObjectInstancesManager; |
| import nsk.share.jdi.HeapwalkingDebuggee; |
| import nsk.share.jdi.HeapwalkingDebugger; |
| import nsk.share.jpda.AbstractDebuggeeTest; |
| |
| public class instances001 extends HeapwalkingDebugger { |
| public static void main(String argv[]) { |
| System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE); |
| } |
| |
| public static int run(String argv[], PrintStream out) { |
| return new instances001().runIt(argv, out); |
| } |
| |
| protected String debuggeeClassName() { |
| return nsk.share.jdi.HeapwalkingDebuggee.class.getName(); |
| } |
| |
| // test given class with all references types |
| protected void testClass(String className) { |
| // force GC in debugee VM to avoid collection of weak references during test execution |
| forceGC(); |
| |
| for (String referrerType : ObjectInstancesManager.allReferenceTypes) { |
| testReferrerType(referrerType, className); |
| if (ObjectInstancesManager.isWeak(referrerType)) { |
| // if GC occurs during test the results should be ignored |
| resetStatusIfGC(); |
| } |
| } |
| } |
| |
| protected void testReferrerType(String referrerType, String className) { |
| int createInstanceCount = 50; |
| int baseCount = 0; |
| |
| ReferenceType referenceType = debuggee.classByName(className); |
| |
| // object number created in target VM before debugger command should be filtered |
| if (referenceType != null) { |
| List<ObjectReference> objectReferences = referenceType.instances(0); |
| |
| // disable GC because of uncontrolled object deletion may break test checks |
| for (ObjectReference objectReference : objectReferences) |
| objectReference.disableCollection(); |
| |
| baseCount = objectReferences.size(); |
| } |
| |
| boolean isIncludedIntoInstancesCount = HeapwalkingDebuggee.isIncludedIntoInstancesCount(referrerType); |
| |
| pipe.println(HeapwalkingDebuggee.COMMAND_CREATE_INSTANCES + ":" + className + ":" + createInstanceCount + ":" + 1 + ":" + referrerType); |
| |
| int expectedCount; |
| |
| if (isIncludedIntoInstancesCount) |
| expectedCount = baseCount + createInstanceCount; |
| else |
| expectedCount = baseCount; |
| |
| checkDebugeeAnswer_instanceCounts(className, expectedCount); |
| checkDebugeeAnswer_instances(className, expectedCount); |
| |
| //delete half of instances |
| |
| int deleteCount = createInstanceCount / 2; |
| pipe.println(HeapwalkingDebuggee.COMMAND_DELETE_INSTANCES + ":" + className + ":" + deleteCount); |
| |
| createInstanceCount -= deleteCount; |
| |
| if (isIncludedIntoInstancesCount) |
| expectedCount = baseCount + createInstanceCount; |
| else |
| expectedCount = baseCount; |
| |
| checkDebugeeAnswer_instanceCounts(className, expectedCount); |
| checkDebugeeAnswer_instances(className, expectedCount); |
| |
| //delete all instances |
| |
| deleteCount = createInstanceCount; |
| |
| pipe.println(HeapwalkingDebuggee.COMMAND_DELETE_INSTANCES + ":" + className + ":" + deleteCount); |
| |
| if (isIncludedIntoInstancesCount) |
| expectedCount = baseCount; |
| else |
| expectedCount = baseCount; |
| |
| checkDebugeeAnswer_instanceCounts(className, expectedCount); |
| checkDebugeeAnswer_instances(className, expectedCount); |
| } |
| |
| // also check number of instanes for InterfaceType |
| protected void checkDebugeeAnswer_instances(String className, int expectedInstances) { |
| super.checkDebugeeAnswer_instances(className, expectedInstances); |
| |
| ReferenceType referenceType = debuggee.classByName(className); |
| |
| // check number of instances for InterfaceType(should be 0) |
| if (referenceType instanceof ClassType) { |
| ClassType classType = (ClassType) referenceType; |
| |
| for (InterfaceType interfaceType : classType.interfaces()) { |
| checkDebugeeAnswer_InterfaceType_instances(interfaceType, 0); |
| } |
| } |
| } |
| |
| // ArrayType, ClassType and InterfaceType are tested here |
| protected void doTest() { |
| String testClassName = "nsk.share.jdi.TestClass1"; |
| String testClassSubclassName = "nsk.share.jdi.TestClass2"; |
| |
| int subclassInstanceCount = 10; |
| |
| String testClasses[] = { testClassName, "nsk.share.jdi.TestInterfaceImplementer1", "boolean[]", "float[]" }; |
| |
| // create instances of 'nsk.share.jdi.TestClass1' subclass to ensure that instances of subclasses are not returned by ReferenceType.instances() |
| pipe.println(HeapwalkingDebuggee.COMMAND_CREATE_INSTANCES + ":" + testClassSubclassName + ":" + subclassInstanceCount); |
| |
| checkDebugeeAnswer_instanceCounts(testClassSubclassName, subclassInstanceCount); |
| checkDebugeeAnswer_instances(testClassSubclassName, subclassInstanceCount); |
| |
| for (String className : testClasses) { |
| testClass(className); |
| } |
| } |
| } |
