jdk/test/com/sun/jdi/InstancesTest.java - platform/libcore - Git at Google

 /*
  * Copyright (c) 2005, 2015, 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 5024119
  * @summary Add ReferenceType.getAllInstances () method to JDI.
  * @author jjh
  *
  * @run build TestScaffold VMConnection TargetListener TargetAdapter
  * @run compile -g InstancesTest.java
  * @run driver InstancesTest
  */

 /*
  *  To run this test do this:
  *     runregress -no InstancesTest <cmd line options>
  *
  *  where <cmd line options> are the options to be used to
  *  launch the debuggee, with the classname prefixed with @@.
  *  For example, this would run java2d demo as the debuggee:
  *     runregress -no InstancesTest -classpath
  *                                    $jdkDir/demo/jfc/Java2D/Java2Demo.jar \
  *                                    -client @@java2d.Java2Demo
  *
  * In this mode, the specified debuggee is launched in debug mode,
  * the debugger waits 20 secs, and then connects to the debuggee, suspends
  * it, and 'debugs' it.
  *
  * If <cmd line options> is not specified, then the InstancesTarg class below
  * is run as the debuggee.
  */
 import com.sun.jdi.*;
 import com.sun.jdi.event.*;
 import com.sun.jdi.request.*;

 import java.util.*;

 class InstancesFiller {
     // This many instances of this are created.
     static int FILLER_COUNT = 200000;
     static InstancesFiller[] lotsAndLots = new InstancesFiller[
                                                InstancesFiller.FILLER_COUNT];
     int xx;
     InstancesFiller(int p1) {
         xx = p1;
     }
 }

 class InstancesTarg {
     // This many instances + 1 of this class are created.
     static int TARG_COUNT = 1000;
     static InstancesTarg theInstancesTarg;
     static InstancesTarg[] allInstancesTargs;

     // Each instance will point to the theInstancesTarg
     InstancesTarg oneInstancesTarg;

     public static void bkpt() {
     }

     public static void main(String[] args) {
         System.out.println("Howdy!");
         for (int ii = 0; ii < InstancesFiller.lotsAndLots.length; ii++) {
             InstancesFiller.lotsAndLots[ii] = new InstancesFiller(ii);
         }

         theInstancesTarg = new InstancesTarg();
         allInstancesTargs = new InstancesTarg[InstancesTarg.TARG_COUNT];
         for (int ii = 0; ii < InstancesTarg.TARG_COUNT; ii++) {
             allInstancesTargs[ii] = new InstancesTarg();
             allInstancesTargs[ii].oneInstancesTarg = theInstancesTarg;
         }
         bkpt();

         System.out.println("Goodbye from InstancesTarg!");
     }
 }

 /********** test program **********/

 public class InstancesTest extends TestScaffold {
     static String targetName = "InstancesTarg";
     ReferenceType targetClass;
     ThreadReference mainThread;

     InstancesTest(String args[]) {
         super(args);
     }

     public static void main(String[] args) throws Exception {
         /*
          * If args contains @@xxxx, then that is the
          * name of the class we are to run.
          */
         for (int ii = 0; ii < args.length; ii ++) {
             if (args[ii].startsWith("@@")) {
                 targetName = args[ii] = args[ii].substring(2);
                 break;
             }
         }
         new InstancesTest(args).startTests();
     }

     /*
      * Used to sort a list of ReferenceTypes by
      * instance count.
      */
     class ToSort implements Comparable<ToSort> {
         long count;
         ReferenceType rt;

         public ToSort(long count, ReferenceType rt) {
             this.count = count;
             this.rt = rt;
         }

         public int compareTo(ToSort obj) {
             if (count < obj.count) return -1;
             if (count == obj.count) return 0;
             return 1;
         }
     }

     protected void runTests() throws Exception {
         /*
          * Get to the top of main()
          * to determine targetClass and mainThread
          */
         int CUT_OFF = 1000;
         BreakpointEvent bpe;
         bpe = startToMain(targetName);
         targetClass = bpe.location().declaringType();
         mainThread = bpe.thread();

         if (targetName.equals("InstancesTarg")) {
             resumeTo("InstancesTarg", "bkpt", "()V");
         } else {
             // Let debuggee run for awhile to get classes loaded
             vm().resume();
             try {
                 System.err.println("Press <enter> to continue");
                 System.in.read();
                 System.err.println("running...");

             } catch(Exception e) {
             }
             vm().suspend();
         }

         // Get all classes.
         long start = System.currentTimeMillis();
         List<ReferenceType> allClasses = vm().allClasses();
         long end = System.currentTimeMillis();
         System.out.println( allClasses.size() +
                             " classes from vm.allClasses() took " +
                             (end - start) + " ms");

         long[] counts;

         // Test for NPE
         {
             boolean pass = false;
             try {
                 counts = vm().instanceCounts(null);
             } catch (NullPointerException ee) {
                 pass = true;
             }
             if (!pass) {
                 failure("failure: NullPointerException not thrown on instanceCounts(null)");
             }
         }

         // Test for 0 length array
         {
             List<ReferenceType>someClasses = new ArrayList(2);
             counts = vm().instanceCounts(someClasses);
             if (counts.length != 0) {
                 failure("failure: instanceCounts with a zero length array fails: " +
                         counts.length);
             }
         }

         // Test various values of maxInstances
         if (targetClass.name().equals("InstancesTarg")) {
             List<ObjectReference> noInstances = targetClass.instances(0);
             if (noInstances.size() != InstancesTarg.TARG_COUNT + 1) {
                 failure("failure: instances(0): " + noInstances.size() + ", for " + targetClass);
             }
             noInstances = targetClass.instances(1);
             if (noInstances.size() != 1) {
                 failure("failure: instances(1): " + noInstances.size() + ", for " + targetClass);
             }
             boolean pass = false;
             try {
                 noInstances = targetClass.instances(-1);
             } catch (IllegalArgumentException ee) {
                 pass = true;
             }
             if (!pass) {
                 failure("failure: instances(-1) did not get an exception");
             }
         }

         // Instance counts for all classes
         start = System.currentTimeMillis();
         counts = vm().instanceCounts(allClasses);
         end = System.currentTimeMillis();

         if (counts.length == 0) {
             System.out.println("failure: No instances found");
             throw new Exception("InstancesTest: failed");
         }

         // Create a list of ReferenceTypes sorted by instance count
         int size = 0;
         List<ToSort> sorted = new ArrayList(allClasses.size());
         for (int ii = 0; ii < allClasses.size(); ii++) {
             System.out.println(counts[ii] + "   " + allClasses.get(ii));
             size += counts[ii];
             ToSort tos = new ToSort(counts[ii], allClasses.get(ii));
             sorted.add(tos);
         }

         System.out.println("instance counts for " + counts.length +
                            " classes got " + size + " instances and took " +
                             (end - start) + " ms");


         boolean gotInstancesFiller = false;
         boolean gotInstancesTarg = false;

         Collections.sort(sorted);
         for (int ii = sorted.size() - 1; ii >= 0 ; ii--) {
             ToSort xxx = sorted.get(ii);
             if (xxx.count <= CUT_OFF) {
                 break;
             }
             if (xxx.rt.name().equals("InstancesFiller") &&
                 xxx.count == InstancesFiller.FILLER_COUNT) {
                 gotInstancesFiller = true;
             }
             if (xxx.rt.name().equals("InstancesTarg") &&
                 xxx.count == InstancesTarg.TARG_COUNT + 1) {
                 gotInstancesTarg = true;
             }
         }
         if (!gotInstancesFiller) {
                 failure("failure: Expected " + InstancesFiller.FILLER_COUNT +
                         " instances of InstancesFiller");
         }
         if (!gotInstancesTarg) {
             failure("failure: Expected " + (InstancesTarg.TARG_COUNT + 1) +
                     " instances of InstancesTarg");
         }

         // Instances, one class at a time, in sorted order, printing each line
         if (true) {
             System.out.println("\nGetting instances for one class " +
                                "at a time (limited) in sorted order");
             List<ReferenceType> rtList = new ArrayList(1);
             rtList.add(null);
             long start1 = System.currentTimeMillis();
             size = 0;
             long count = 0;
             for (int ii = sorted.size() - 1; ii >= 0 ; ii--) {
                 ToSort xxx = sorted.get(ii);
                 if (xxx.count <= CUT_OFF) {
                     break;
                 }
                 rtList.set(0, xxx.rt);
                 start = System.currentTimeMillis();
                 List<ObjectReference> oneInstances = xxx.rt.instances(19999999);
                 end = System.currentTimeMillis();
                 size += oneInstances.size();
                 count++;
                 System.out.println("Expected " + xxx.count + " instances, got " +
                                    oneInstances.size() +
                                    " instances for " + sorted.get(ii).rt +
                                    " in " + (end - start) + " ms");

                 if (xxx.rt.name().equals("InstancesFiller") &&
                     oneInstances.size() != InstancesFiller.FILLER_COUNT) {
                     failure("failure: Expected " + InstancesFiller.FILLER_COUNT +
                             " instances of InstancesFiller");
                 }
                 if (xxx.rt.name().equals("InstancesTarg") &&
                     oneInstances.size() != InstancesTarg.TARG_COUNT + 1) {
                     failure("failure: Expected " + (InstancesTarg.TARG_COUNT + 1) +
                             " instances of InstancesTarg");
                 }

             }

             end = System.currentTimeMillis();

             System.out.println(size + " instances via making one vm.instances" +
                                " call for each of " + count +
                                " classes took " + (end - start1) + " ms");
             System.out.println("Per class = " +
                                (end - start) / allClasses.size() + " ms");
         }

         /*
          * deal with results of test
          * if anything has called failure("foo") testFailed will be true
          */
         if (!testFailed) {
             println("InstancesTest: passed");
         } else {
             throw new Exception("InstancesTest: failed");
         }
     }
 }
	/*
	* Copyright (c) 2005, 2015, 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 5024119
	* @summary Add ReferenceType.getAllInstances () method to JDI.
	* @author jjh
	*
	* @run build TestScaffold VMConnection TargetListener TargetAdapter
	* @run compile -g InstancesTest.java
	* @run driver InstancesTest
	*/

	/*
	* To run this test do this:
	* runregress -no InstancesTest <cmd line options>
	*
	* where <cmd line options> are the options to be used to
	* launch the debuggee, with the classname prefixed with @@.
	* For example, this would run java2d demo as the debuggee:
	* runregress -no InstancesTest -classpath
	* $jdkDir/demo/jfc/Java2D/Java2Demo.jar \
	* -client @@java2d.Java2Demo
	*
	* In this mode, the specified debuggee is launched in debug mode,
	* the debugger waits 20 secs, and then connects to the debuggee, suspends
	* it, and 'debugs' it.
	*
	* If <cmd line options> is not specified, then the InstancesTarg class below
	* is run as the debuggee.
	*/
	import com.sun.jdi.*;
	import com.sun.jdi.event.*;
	import com.sun.jdi.request.*;

	import java.util.*;

	class InstancesFiller {
	// This many instances of this are created.
	static int FILLER_COUNT = 200000;
	static InstancesFiller[] lotsAndLots = new InstancesFiller[
	InstancesFiller.FILLER_COUNT];
	int xx;
	InstancesFiller(int p1) {
	xx = p1;
	}
	}

	class InstancesTarg {
	// This many instances + 1 of this class are created.
	static int TARG_COUNT = 1000;
	static InstancesTarg theInstancesTarg;
	static InstancesTarg[] allInstancesTargs;

	// Each instance will point to the theInstancesTarg
	InstancesTarg oneInstancesTarg;

	public static void bkpt() {
	}

	public static void main(String[] args) {
	System.out.println("Howdy!");
	for (int ii = 0; ii < InstancesFiller.lotsAndLots.length; ii++) {
	InstancesFiller.lotsAndLots[ii] = new InstancesFiller(ii);
	}

	theInstancesTarg = new InstancesTarg();
	allInstancesTargs = new InstancesTarg[InstancesTarg.TARG_COUNT];
	for (int ii = 0; ii < InstancesTarg.TARG_COUNT; ii++) {
	allInstancesTargs[ii] = new InstancesTarg();
	allInstancesTargs[ii].oneInstancesTarg = theInstancesTarg;
	}
	bkpt();

	System.out.println("Goodbye from InstancesTarg!");
	}
	}

	/******** test program ********/

	public class InstancesTest extends TestScaffold {
	static String targetName = "InstancesTarg";
	ReferenceType targetClass;
	ThreadReference mainThread;

	InstancesTest(String args[]) {
	super(args);
	}

	public static void main(String[] args) throws Exception {
	/*
	* If args contains @@xxxx, then that is the
	* name of the class we are to run.
	*/
	for (int ii = 0; ii < args.length; ii ++) {
	if (args[ii].startsWith("@@")) {
	targetName = args[ii] = args[ii].substring(2);
	break;
	}
	}
	new InstancesTest(args).startTests();
	}

	/*
	* Used to sort a list of ReferenceTypes by
	* instance count.
	*/
	class ToSort implements Comparable<ToSort> {
	long count;
	ReferenceType rt;

	public ToSort(long count, ReferenceType rt) {
	this.count = count;
	this.rt = rt;
	}

	public int compareTo(ToSort obj) {
	if (count < obj.count) return -1;
	if (count == obj.count) return 0;
	return 1;
	}
	}

	protected void runTests() throws Exception {
	/*
	* Get to the top of main()
	* to determine targetClass and mainThread
	*/
	int CUT_OFF = 1000;
	BreakpointEvent bpe;
	bpe = startToMain(targetName);
	targetClass = bpe.location().declaringType();
	mainThread = bpe.thread();

	if (targetName.equals("InstancesTarg")) {
	resumeTo("InstancesTarg", "bkpt", "()V");
	} else {
	// Let debuggee run for awhile to get classes loaded
	vm().resume();
	try {
	System.err.println("Press <enter> to continue");
	System.in.read();
	System.err.println("running...");

	} catch(Exception e) {
	}
	vm().suspend();
	}

	// Get all classes.
	long start = System.currentTimeMillis();
	List<ReferenceType> allClasses = vm().allClasses();
	long end = System.currentTimeMillis();
	System.out.println( allClasses.size() +
	" classes from vm.allClasses() took " +
	(end - start) + " ms");

	long[] counts;

	// Test for NPE
	{
	boolean pass = false;
	try {
	counts = vm().instanceCounts(null);
	} catch (NullPointerException ee) {
	pass = true;
	}
	if (!pass) {
	failure("failure: NullPointerException not thrown on instanceCounts(null)");
	}
	}

	// Test for 0 length array
	{
	List<ReferenceType>someClasses = new ArrayList(2);
	counts = vm().instanceCounts(someClasses);
	if (counts.length != 0) {
	failure("failure: instanceCounts with a zero length array fails: " +
	counts.length);
	}
	}

	// Test various values of maxInstances
	if (targetClass.name().equals("InstancesTarg")) {
	List<ObjectReference> noInstances = targetClass.instances(0);
	if (noInstances.size() != InstancesTarg.TARG_COUNT + 1) {
	failure("failure: instances(0): " + noInstances.size() + ", for " + targetClass);
	}
	noInstances = targetClass.instances(1);
	if (noInstances.size() != 1) {
	failure("failure: instances(1): " + noInstances.size() + ", for " + targetClass);
	}
	boolean pass = false;
	try {
	noInstances = targetClass.instances(-1);
	} catch (IllegalArgumentException ee) {
	pass = true;
	}
	if (!pass) {
	failure("failure: instances(-1) did not get an exception");
	}
	}

	// Instance counts for all classes
	start = System.currentTimeMillis();
	counts = vm().instanceCounts(allClasses);
	end = System.currentTimeMillis();

	if (counts.length == 0) {
	System.out.println("failure: No instances found");
	throw new Exception("InstancesTest: failed");
	}

	// Create a list of ReferenceTypes sorted by instance count
	int size = 0;
	List<ToSort> sorted = new ArrayList(allClasses.size());
	for (int ii = 0; ii < allClasses.size(); ii++) {
	System.out.println(counts[ii] + " " + allClasses.get(ii));
	size += counts[ii];
	ToSort tos = new ToSort(counts[ii], allClasses.get(ii));
	sorted.add(tos);
	}

	System.out.println("instance counts for " + counts.length +
	" classes got " + size + " instances and took " +
	(end - start) + " ms");


	boolean gotInstancesFiller = false;
	boolean gotInstancesTarg = false;

	Collections.sort(sorted);
	for (int ii = sorted.size() - 1; ii >= 0 ; ii--) {
	ToSort xxx = sorted.get(ii);
	if (xxx.count <= CUT_OFF) {
	break;
	}
	if (xxx.rt.name().equals("InstancesFiller") &&
	xxx.count == InstancesFiller.FILLER_COUNT) {
	gotInstancesFiller = true;
	}
	if (xxx.rt.name().equals("InstancesTarg") &&
	xxx.count == InstancesTarg.TARG_COUNT + 1) {
	gotInstancesTarg = true;
	}
	}
	if (!gotInstancesFiller) {
	failure("failure: Expected " + InstancesFiller.FILLER_COUNT +
	" instances of InstancesFiller");
	}
	if (!gotInstancesTarg) {
	failure("failure: Expected " + (InstancesTarg.TARG_COUNT + 1) +
	" instances of InstancesTarg");
	}

	// Instances, one class at a time, in sorted order, printing each line
	if (true) {
	System.out.println("\nGetting instances for one class " +
	"at a time (limited) in sorted order");
	List<ReferenceType> rtList = new ArrayList(1);
	rtList.add(null);
	long start1 = System.currentTimeMillis();
	size = 0;
	long count = 0;
	for (int ii = sorted.size() - 1; ii >= 0 ; ii--) {
	ToSort xxx = sorted.get(ii);
	if (xxx.count <= CUT_OFF) {
	break;
	}
	rtList.set(0, xxx.rt);
	start = System.currentTimeMillis();
	List<ObjectReference> oneInstances = xxx.rt.instances(19999999);
	end = System.currentTimeMillis();
	size += oneInstances.size();
	count++;
	System.out.println("Expected " + xxx.count + " instances, got " +
	oneInstances.size() +
	" instances for " + sorted.get(ii).rt +
	" in " + (end - start) + " ms");

	if (xxx.rt.name().equals("InstancesFiller") &&
	oneInstances.size() != InstancesFiller.FILLER_COUNT) {
	failure("failure: Expected " + InstancesFiller.FILLER_COUNT +
	" instances of InstancesFiller");
	}
	if (xxx.rt.name().equals("InstancesTarg") &&
	oneInstances.size() != InstancesTarg.TARG_COUNT + 1) {
	failure("failure: Expected " + (InstancesTarg.TARG_COUNT + 1) +
	" instances of InstancesTarg");
	}

	}

	end = System.currentTimeMillis();

	System.out.println(size + " instances via making one vm.instances" +
	" call for each of " + count +
	" classes took " + (end - start1) + " ms");
	System.out.println("Per class = " +
	(end - start) / allClasses.size() + " ms");
	}

	/*
	* deal with results of test
	* if anything has called failure("foo") testFailed will be true
	*/
	if (!testFailed) {
	println("InstancesTest: passed");
	} else {
	throw new Exception("InstancesTest: failed");
	}
	}
	}