test/hotspot/jtreg/vmTestbase/nsk/jdi/VirtualMachine/redefineClasses/redefineclasses031.java - platform/libcore - Git at Google

 /*
  * Copyright (c) 2002, 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.
  */

 package nsk.jdi.VirtualMachine.redefineClasses;

 import nsk.share.*;
 import nsk.share.jpda.*;
 import nsk.share.jdi.*;

 import com.sun.jdi.*;
 import com.sun.jdi.request.*;
 import com.sun.jdi.event.*;

 import java.util.*;
 import java.io.*;

 /**
  * The test checks up <code>com.sun.jdi.VirtualMachine.redefineClasses()</code>.
  * In for loop the test sets breakpoint and tries to redefines debugee's
  * method by changing value of debugee's field. After resuming debugee,
  * the test checks if a tested field contains correct value.
  * When <code>canRedefineClasses()</code> is <code>false</code>, the test is
  * considered as passed and completes it's execution.
  */

 public class redefineclasses031 {

     public final static String UNEXPECTED_STRING = "***Unexpected exception ";
     public final static String EXPECTED_STRING = "!!!Expected exception ";

     private final static String prefix = "nsk.jdi.VirtualMachine.redefineClasses.";
     private final static String debuggerName = prefix + "redefineclasses031";
     private final static String debugeeName = debuggerName + "a";
     private final static String Name = debuggerName + "b";

     public final static String PREPARE_SGL = "prepare";
     public final static String PERFORM_SGL = "perform";
     public final static String QUIT_SGL    = "quit";
     public final static String READY_SGL    = "ready";

     private final static String[] subDirs = {
             "newclass01",
             "newclass02",
             "newclass03",
             "newclass04",
             "newclass05"
     };

     private final static String newClassFile = File.separator
                     + prefix.replace('.',File.separatorChar)
                     + "redefineclasses031a.class";
     private static final String dashes = "--------------------------";

     private static int exitStatus;
     private static Log log;
     private static Debugee debugee;
     private static long waitTime;
     private static String testDir;
     private static String statDebugee;

     private ClassType debugeeClass;

     private static void display(String msg) {
         log.display(msg);
     }

     private static void complain(String msg) {
         log.complain("debugger FAILURE> " + msg + "\n");
     }

     public static void main(String argv[]) {
         System.exit(Consts.JCK_STATUS_BASE + run(argv, System.out));
     }

     public static int run(String argv[], PrintStream out) {

         exitStatus = Consts.TEST_PASSED;

         redefineclasses031 thisTest = new redefineclasses031();

         ArgumentHandler argHandler = new ArgumentHandler(argv);
         log = new Log(out, argHandler);

         testDir = argv[0];
         waitTime = argHandler.getWaitTime() * 60000;

         debugee = Debugee.prepareDebugee(argHandler, log, debugeeName);

         try {
             thisTest.execTest();
         } catch (Failure e) {
             exitStatus = Consts.TEST_FAILED;
             e.printStackTrace();
         } finally {
             debugee.resume();
             debugee.quit();
         }
         display("Test finished. exitStatus = " + exitStatus);

         return exitStatus;
     }

     private void execTest() throws Failure {

         if (!debugee.VM().canRedefineClasses()) {
             display("\n>>>canRedefineClasses() is false<<< test canceled.\n");
             return;
         }

         debugeeClass = (ClassType)debugee.classByName(debugeeName);

         display("\nTEST BEGINS");
         display("===========");

         debugee.VM().suspend();
         debugee.sendSignal(PERFORM_SGL);

         display("Tested class\t:" + debugeeClass.name());

         ThreadReference thrd = debugee.threadByName("main");

         StepRequest sreq;
         BreakpointRequest brkp;
         Field testedField;
         PrimitiveValue val;

         for (int i = 0; i < subDirs.length; i++) {
             brkp = debugee.setBreakpoint(debugeeClass,
                                                 redefineclasses031a.brkpMethodName,
                                                 redefineclasses031a.brkpLineNumber);
             debugee.resume();

             waitBreakpointEvent(brkp, waitTime);

             redefineDebugee(subDirs[i]);

             sreq = debugee.getEventRequestManager().createStepRequest(thrd,
                                             StepRequest.STEP_LINE,
                                             StepRequest.STEP_OVER);
             sreq.enable();
             debugee.resume();

             waitStepEvent(sreq, waitTime);

             testedField = debugeeClass.fieldByName("testedField");
             val = (PrimitiveValue )debugeeClass.getValue(testedField);
             if (val.intValue() != redefineclasses031a.NEW_VALUES[i]) {
                 exitStatus = Consts.TEST_FAILED;
                 complain("actual value = " + val.intValue()
                             + ", expected " + redefineclasses031a.NEW_VALUES[i]);
             } else {
                 display("actual value = " + val.intValue()
                             + ", expected " + redefineclasses031a.NEW_VALUES[i]);
             }

             debugee.getEventRequestManager().deleteEventRequest(sreq);
         }
         debugee.resume();

         display("\n=============");
         display("TEST FINISHES\n");
     }

     private void redefineDebugee(String newClassDir) {
         Map<? extends com.sun.jdi.ReferenceType,byte[]> mapBytes;
         boolean alreadyComplained = false;
         display("\n" + newClassDir + ">>>");
         mapBytes = mapClassToBytes(testDir + File.separator + newClassDir + newClassFile);
         try {
             debugee.VM().redefineClasses(mapBytes);
         } catch (Exception e) {
             throw new Failure(UNEXPECTED_STRING + e);
         }
     }

     private Map<? extends com.sun.jdi.ReferenceType,byte[]> mapClassToBytes(String fileName) {
         display("class-file\t:" + fileName);
         File fileToBeRedefined = new File(fileName);
         int fileToRedefineLength = (int )fileToBeRedefined.length();
         byte[] arrayToRedefine = new byte[fileToRedefineLength];

         FileInputStream inputFile;
         try {
             inputFile = new FileInputStream(fileToBeRedefined);
         } catch (FileNotFoundException e) {
             throw new Failure(UNEXPECTED_STRING + e);
         }

         try {
             inputFile.read(arrayToRedefine);
             inputFile.close();
         } catch (IOException e) {
             throw new Failure(UNEXPECTED_STRING + e);
         }
         HashMap<com.sun.jdi.ReferenceType,byte[]> mapForClass = new HashMap<com.sun.jdi.ReferenceType,byte[]>();
         mapForClass.put(debugeeClass, arrayToRedefine);
         return mapForClass;
     }

     private BreakpointEvent waitBreakpointEvent(BreakpointRequest brkp, long waitTime) {
         Event event;
         try {
             event = debugee.waitingEvent(brkp, waitTime);
         } catch (InterruptedException e) {
             throw new Failure(UNEXPECTED_STRING + e);
         }
         if (!(event instanceof BreakpointEvent )) {
             throw new Failure("BreakpointEvent didn't arrive");
         }

         return (BreakpointEvent )event;
     }

     private StepEvent waitStepEvent(StepRequest brkp, long waitTime) {
         Event event;
         try {
             event = debugee.waitingEvent(brkp, waitTime);
         } catch (InterruptedException e) {
             throw new Failure(UNEXPECTED_STRING + e);
         }
         if (!(event instanceof StepEvent )) {
             throw new Failure("StepEvent didn't arrive");
         }

         return (StepEvent )event;
     }
 }
	/*
	* Copyright (c) 2002, 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.
	*/

	package nsk.jdi.VirtualMachine.redefineClasses;

	import nsk.share.*;
	import nsk.share.jpda.*;
	import nsk.share.jdi.*;

	import com.sun.jdi.*;
	import com.sun.jdi.request.*;
	import com.sun.jdi.event.*;

	import java.util.*;
	import java.io.*;

	/**
	* The test checks up <code>com.sun.jdi.VirtualMachine.redefineClasses()</code>.
	* In for loop the test sets breakpoint and tries to redefines debugee's
	* method by changing value of debugee's field. After resuming debugee,
	* the test checks if a tested field contains correct value.
	* When <code>canRedefineClasses()</code> is <code>false</code>, the test is
	* considered as passed and completes it's execution.
	*/

	public class redefineclasses031 {

	public final static String UNEXPECTED_STRING = "***Unexpected exception ";
	public final static String EXPECTED_STRING = "!!!Expected exception ";

	private final static String prefix = "nsk.jdi.VirtualMachine.redefineClasses.";
	private final static String debuggerName = prefix + "redefineclasses031";
	private final static String debugeeName = debuggerName + "a";
	private final static String Name = debuggerName + "b";

	public final static String PREPARE_SGL = "prepare";
	public final static String PERFORM_SGL = "perform";
	public final static String QUIT_SGL = "quit";
	public final static String READY_SGL = "ready";

	private final static String[] subDirs = {
	"newclass01",
	"newclass02",
	"newclass03",
	"newclass04",
	"newclass05"
	};

	private final static String newClassFile = File.separator
	+ prefix.replace('.',File.separatorChar)
	+ "redefineclasses031a.class";
	private static final String dashes = "--------------------------";

	private static int exitStatus;
	private static Log log;
	private static Debugee debugee;
	private static long waitTime;
	private static String testDir;
	private static String statDebugee;

	private ClassType debugeeClass;

	private static void display(String msg) {
	log.display(msg);
	}

	private static void complain(String msg) {
	log.complain("debugger FAILURE> " + msg + "\n");
	}

	public static void main(String argv[]) {
	System.exit(Consts.JCK_STATUS_BASE + run(argv, System.out));
	}

	public static int run(String argv[], PrintStream out) {

	exitStatus = Consts.TEST_PASSED;

	redefineclasses031 thisTest = new redefineclasses031();

	ArgumentHandler argHandler = new ArgumentHandler(argv);
	log = new Log(out, argHandler);

	testDir = argv[0];
	waitTime = argHandler.getWaitTime() * 60000;

	debugee = Debugee.prepareDebugee(argHandler, log, debugeeName);

	try {
	thisTest.execTest();
	} catch (Failure e) {
	exitStatus = Consts.TEST_FAILED;
	e.printStackTrace();
	} finally {
	debugee.resume();
	debugee.quit();
	}
	display("Test finished. exitStatus = " + exitStatus);

	return exitStatus;
	}

	private void execTest() throws Failure {

	if (!debugee.VM().canRedefineClasses()) {
	display("\n>>>canRedefineClasses() is false<<< test canceled.\n");
	return;
	}

	debugeeClass = (ClassType)debugee.classByName(debugeeName);

	display("\nTEST BEGINS");
	display("===========");

	debugee.VM().suspend();
	debugee.sendSignal(PERFORM_SGL);

	display("Tested class\t:" + debugeeClass.name());

	ThreadReference thrd = debugee.threadByName("main");

	StepRequest sreq;
	BreakpointRequest brkp;
	Field testedField;
	PrimitiveValue val;

	for (int i = 0; i < subDirs.length; i++) {
	brkp = debugee.setBreakpoint(debugeeClass,
	redefineclasses031a.brkpMethodName,
	redefineclasses031a.brkpLineNumber);
	debugee.resume();

	waitBreakpointEvent(brkp, waitTime);

	redefineDebugee(subDirs[i]);

	sreq = debugee.getEventRequestManager().createStepRequest(thrd,
	StepRequest.STEP_LINE,
	StepRequest.STEP_OVER);
	sreq.enable();
	debugee.resume();

	waitStepEvent(sreq, waitTime);

	testedField = debugeeClass.fieldByName("testedField");
	val = (PrimitiveValue )debugeeClass.getValue(testedField);
	if (val.intValue() != redefineclasses031a.NEW_VALUES[i]) {
	exitStatus = Consts.TEST_FAILED;
	complain("actual value = " + val.intValue()
	+ ", expected " + redefineclasses031a.NEW_VALUES[i]);
	} else {
	display("actual value = " + val.intValue()
	+ ", expected " + redefineclasses031a.NEW_VALUES[i]);
	}

	debugee.getEventRequestManager().deleteEventRequest(sreq);
	}
	debugee.resume();

	display("\n=============");
	display("TEST FINISHES\n");
	}

	private void redefineDebugee(String newClassDir) {
	Map<? extends com.sun.jdi.ReferenceType,byte[]> mapBytes;
	boolean alreadyComplained = false;
	display("\n" + newClassDir + ">>>");
	mapBytes = mapClassToBytes(testDir + File.separator + newClassDir + newClassFile);
	try {
	debugee.VM().redefineClasses(mapBytes);
	} catch (Exception e) {
	throw new Failure(UNEXPECTED_STRING + e);
	}
	}

	private Map<? extends com.sun.jdi.ReferenceType,byte[]> mapClassToBytes(String fileName) {
	display("class-file\t:" + fileName);
	File fileToBeRedefined = new File(fileName);
	int fileToRedefineLength = (int )fileToBeRedefined.length();
	byte[] arrayToRedefine = new byte[fileToRedefineLength];

	FileInputStream inputFile;
	try {
	inputFile = new FileInputStream(fileToBeRedefined);
	} catch (FileNotFoundException e) {
	throw new Failure(UNEXPECTED_STRING + e);
	}

	try {
	inputFile.read(arrayToRedefine);
	inputFile.close();
	} catch (IOException e) {
	throw new Failure(UNEXPECTED_STRING + e);
	}
	HashMap<com.sun.jdi.ReferenceType,byte[]> mapForClass = new HashMap<com.sun.jdi.ReferenceType,byte[]>();
	mapForClass.put(debugeeClass, arrayToRedefine);
	return mapForClass;
	}

	private BreakpointEvent waitBreakpointEvent(BreakpointRequest brkp, long waitTime) {
	Event event;
	try {
	event = debugee.waitingEvent(brkp, waitTime);
	} catch (InterruptedException e) {
	throw new Failure(UNEXPECTED_STRING + e);
	}
	if (!(event instanceof BreakpointEvent )) {
	throw new Failure("BreakpointEvent didn't arrive");
	}

	return (BreakpointEvent )event;
	}

	private StepEvent waitStepEvent(StepRequest brkp, long waitTime) {
	Event event;
	try {
	event = debugee.waitingEvent(brkp, waitTime);
	} catch (InterruptedException e) {
	throw new Failure(UNEXPECTED_STRING + e);
	}
	if (!(event instanceof StepEvent )) {
	throw new Failure("StepEvent didn't arrive");
	}

	return (StepEvent )event;
	}
	}