test/hotspot/jtreg/vmTestbase/nsk/jdwp/Event/CLASS_UNLOAD/clsunload001.java - platform/libcore - Git at Google

 /*
  * Copyright (c) 2001, 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.jdwp.Event.CLASS_UNLOAD;

 import java.io.*;

 import nsk.share.*;
 import nsk.share.jpda.*;
 import nsk.share.jdwp.*;

 /**
  * Test for JDWP event: CLASS_UNLOAD.
  *
  * See clsunload001.README for description of test execution.
  *
  * This class represents debugger part of the test.
  * Test is executed by invoking method runIt().
  * JDWP event is tested in the method waitForTestedEvent().
  *
  * @see #runIt()
  * @see #waitForTestedEvent()
  */
 public class clsunload001 {

     // exit status constants
     static final int JCK_STATUS_BASE = 95;
     static final int PASSED = 0;
     static final int FAILED = 2;

     // package and classes names constants
     static final String PACKAGE_NAME = "nsk.jdwp.Event.CLASS_UNLOAD";
     static final String TEST_CLASS_NAME = PACKAGE_NAME + "." + "clsunload001";
     static final String DEBUGEE_CLASS_NAME = TEST_CLASS_NAME + "a";

     // tested JDWP event constants
     static final byte TESTED_EVENT_KIND = JDWP.EventKind.CLASS_UNLOAD;
     static final byte TESTED_EVENT_SUSPEND_POLICY = JDWP.SuspendPolicy.ALL;

     // name and signature of the tested class
     static final String TESTED_CLASS_NAME = DEBUGEE_CLASS_NAME + "$" + "TestedClass";
     static final String TESTED_CLASS_SIGNATURE = "L" + TESTED_CLASS_NAME.replace('.', '/') + ";";

     // usual scaffold objects
     ArgumentHandler argumentHandler = null;
     Log log = null;
     Binder binder = null;
     Debugee debugee = null;
     Transport transport = null;
     int waitTime = 0;  // minutes
     long timeout = 0;  // milliseconds
     boolean dead = false;
     boolean success = true;

     // obtained data
     int eventRequestID = 0;

     // -------------------------------------------------------------------

     /**
      * Start test from command line.
      */
     public static void main(String argv[]) {
         System.exit(run(argv,System.out) + JCK_STATUS_BASE);
     }

     /**
      * Start test from JCK-compilant environment.
      */
     public static int run(String argv[], PrintStream out) {
         return new clsunload001().runIt(argv, out);
     }

     // -------------------------------------------------------------------

     /**
      * Perform test execution.
      */
     public int runIt(String argv[], PrintStream out) {

         // make log for debugger messages
         argumentHandler = new ArgumentHandler(argv);
         log = new Log(out, argumentHandler);
         waitTime = argumentHandler.getWaitTime();
         timeout = waitTime * 60 * 1000;

         // execute test and display results
         try {
             log.display("\n>>> Starting debugee \n");

             // launch debuggee
             binder = new Binder(argumentHandler, log);
             log.display("Launching debugee");
             debugee = binder.bindToDebugee(DEBUGEE_CLASS_NAME);
             transport = debugee.getTransport();
             log.display("  ... debugee launched");
             log.display("");

             // set timeout for debuggee responces
             log.display("Setting timeout for debuggee responces: " + waitTime + " minute(s)");
             transport.setReadTimeout(timeout);
             log.display("  ... timeout set");

             // wait for debuggee started
             log.display("Waiting for VM_INIT event");
             debugee.waitForVMInit();
             log.display("  ... VM_INIT event received");

             // query debugee for VM-dependent ID sizes
             log.display("Querying for IDSizes");
             debugee.queryForIDSizes();
             log.display("  ... size of VM-dependent types adjusted");

             // make request for CLASS_UNLOAD event
             log.display("\n>>> Making request for tested event \n");

             log.display("Making request for CLASS_UNLOAD event for class:\n\t"
                     + TESTED_CLASS_NAME);
             requestTestedEvent();
             log.display("  ... got requestID: " + eventRequestID);

             log.display("Resumindg debuggee");
             debugee.resume();
             log.display("  ... debuggee resumed");

             // wait for tested CLASS_UNLOAD event
             log.display("\n>>> Testing JDWP event \n");
             waitForTestedEvent();

             if (!dead) {
                 // clear tested request for CLASS_UNLOAD event
                 log.display("\n>>> Clearing request for tested event \n");
                 clearTestedRequest();

                 // finish debuggee after testing
                 log.display("\n>>> Finishing debuggee \n");

                 // resume debuggee
                 log.display("Resuming debuggee");
                 debugee.resume();
                 log.display("  ... debuggee resumed");

                 // wait for debuggee exited
                 log.display("Waiting for VM_DEATH event");
                 debugee.waitForVMDeath();
                 dead = true;
                 log.display("  ... VM_DEATH event received");
             }

         } catch (Failure e) {
             log.complain("TEST FAILED: " + e.getMessage());
             success = false;
         } catch (Exception e) {
             e.printStackTrace(out);
             log.complain("Caught unexpected exception while running the test:\n\t" + e);
             success = false;
         } finally {
             // quit debugee
             log.display("\n>>> Finishing test \n");
             quitDebugee();
         }

         // check test results
         if (!success) {
             log.complain("TEST FAILED");
             return FAILED;
         }

         out.println("TEST PASSED");
         return PASSED;

     }

     /**
      * Make request for tested CLASS_UNLOAD event.
      */
     void requestTestedEvent() {
         Failure failure = new Failure("Error occured while makind request for tested event");

         // create command packet and fill requred out data
         log.display("Create command packet: " + "EventRequest.Set");
         CommandPacket command = new CommandPacket(JDWP.Command.EventRequest.Set);
         log.display("    eventKind: " + TESTED_EVENT_KIND);
         command.addByte(TESTED_EVENT_KIND);
         log.display("    eventPolicy: " + TESTED_EVENT_SUSPEND_POLICY);
         command.addByte(TESTED_EVENT_SUSPEND_POLICY);
         log.display("    modifiers: " + 1);
         command.addInt(1);
         log.display("      modKind: " + JDWP.EventModifierKind.CLASS_MATCH);
         command.addByte(JDWP.EventModifierKind.CLASS_MATCH);
         log.display("      classPattern: " + TESTED_CLASS_NAME);
         command.addString(TESTED_CLASS_NAME);
         command.setLength();
         log.display("  ... command packet composed");

         // send command packet to debugee
         try {
             log.display("Sending command packet:\n" + command);
             transport.write(command);
             log.display("  ... command packet sent");
         } catch (IOException e) {
             log.complain("Unable to send command packet:\n\t" + e);
             success = false;
             throw failure;
         }

         ReplyPacket reply = new ReplyPacket();

         // receive reply packet from debugee
         try {
             log.display("Waiting for reply packet");
             transport.read(reply);
             log.display("  ... packet received:\n" + reply);
         } catch (IOException e) {
             log.complain("Unable to read reply packet:\n\t" + e);
             success = false;
             throw failure;
         }

         // check reply packet header
         try{
             log.display("Checking header of reply packet");
             reply.checkHeader(command.getPacketID());
             log.display("  .. packet header is correct");
         } catch (BoundException e) {
             log.complain("Bad header of reply packet:\n\t" + e.getMessage());
             success = false;
             throw failure;
         }

         // start parsing reply packet data
         log.display("Parsing reply packet:");
         reply.resetPosition();

         // extract requestID
         int requestID = 0;
         try {
             requestID = reply.getInt();
             log.display("    requestID: " + requestID);
         } catch (BoundException e) {
             log.complain("Unable to extract requestID from request reply packet:\n\t"
                         + e.getMessage());
             success = false;
             throw failure;
         }

         // check requestID
         if (requestID == 0) {
             log.complain("Unexpected null requestID returned: " + requestID);
             success = false;
             throw failure;
         }

         eventRequestID = requestID;

         // check for extra data in reply packet
         if (!reply.isParsed()) {
             log.complain("Extra trailing bytes found in request reply packet at: "
                         + reply.offsetString());
             success = false;
         }

         log.display("  ... reply packet parsed");
     }

     /**
      * Clear request for tested CLASS_UNLOAD event.
      */
     void clearTestedRequest() {
         Failure failure = new Failure("Error occured while clearing request for tested event");

         // create command packet and fill requred out data
         log.display("Create command packet: " + "EventRequest.Clear");
         CommandPacket command = new CommandPacket(JDWP.Command.EventRequest.Clear);
         log.display("    event: " + TESTED_EVENT_KIND);
         command.addByte(TESTED_EVENT_KIND);
         log.display("    requestID: " + eventRequestID);
         command.addInt(eventRequestID);
         log.display("  ... command packet composed");

         // send command packet to debugee
         try {
             log.display("Sending command packet:\n" + command);
             transport.write(command);
             log.display("  ... command packet sent");
         } catch (IOException e) {
             log.complain("Unable to send command packet:\n\t" + e);
             success = false;
             throw failure;
         }

         ReplyPacket reply = new ReplyPacket();

         // receive reply packet from debugee
         try {
             log.display("Waiting for reply packet");
             transport.read(reply);
             log.display("  ... packet received:\n" + reply);
         } catch (IOException e) {
             log.complain("Unable to read reply packet:\n\t" + e);
             success = false;
             throw failure;
         }

         // check reply packet header
         try{
             log.display("Checking header of reply packet");
             reply.checkHeader(command.getPacketID());
             log.display("  .. packet header is correct");
         } catch (BoundException e) {
             log.complain("Bad header of reply packet:\n\t" + e.getMessage());
             success = false;
             throw failure;
         }

         // start parsing reply packet data
         log.display("Parsing reply packet:");
         reply.resetPosition();

         log.display("    no data");

         // check for extra data in reply packet
         if (!reply.isParsed()) {
             log.complain("Extra trailing bytes found in request reply packet at: "
                         + reply.offsetString());
             success = false;
         }

         log.display("  ... reply packet parsed");
     }

     /**
      * Wait for tested CLASS_UNLOAD event.
      */
     void waitForTestedEvent() {

         EventPacket eventPacket = null;

         // receive reply packet from debugee
         try {
             log.display("Waiting for event packet (for " + timeout + "ms timeout)");
             eventPacket = debugee.getEventPacket(timeout);
             log.display("  ... event packet received:\n" + eventPacket);
         } catch (IOException e) {
             log.complain("Unable to read tested event packet:\n\t" + e);
             success = false;
             return;
         }

         // check reply packet header
         try{
             log.display("Checking header of event packet");
             eventPacket.checkHeader();
             log.display("  ... packet header is correct");
         } catch (BoundException e) {
             log.complain("Bad header of tested event packet:\n\t"
                         + e.getMessage());
             success = false;
             return;
         }

         // start parsing reply packet data
         log.display("Parsing event packet:");
         eventPacket.resetPosition();

         // get suspendPolicy value
         byte suspendPolicy = 0;
         try {
             suspendPolicy = eventPacket.getByte();
             log.display("    suspendPolicy: " + suspendPolicy);
         } catch (BoundException e) {
             log.complain("Unable to get suspendPolicy value from tested event packet:\n\t"
                         + e.getMessage());
             success = false;
             return;
         }

         // get events count
         int events = 0;
         try {
             events = eventPacket.getInt();
             log.display("    events: " + events);
         } catch (BoundException e) {
             log.complain("Unable to get events count from tested event packet:\n\t"
                         + e.getMessage());
             success = false;
             return;
         }

         // check events count
         if (events < 0) {
             log.complain("Negative value of events number in tested event packet: " +
                         events + " (expected: " + 1 + ")");
             success = false;
         } else if (events != 1) {
             log.complain("Invalid number of events in tested event packet: " +
                         events + " (expected: " + 1 + ")");
             success = false;
         }

         // extract each event
         for (int i = 0; i < events; i++) {
             log.display("    event #" + i + ":");

             // get eventKind
             byte eventKind = 0;
             try {
                 eventKind = eventPacket.getByte();
                 log.display("      eventKind: " + eventKind);
             } catch (BoundException e) {
                 log.complain("Unable to get eventKind of event #" + i + " from tested event packet:\n\t"
                             + e.getMessage());
                 success = false;
                 return;
             }

             // check if VM_DEATH event
             if (eventKind == JDWP.EventKind.VM_DEATH) {
                 log.display("Got VM_DEATH event while waiting for tested event");
                 dead = true;
                 log.println("No CLASS_UNLOAD event occured at all so treat test as PASSED");
                 return;
             }

             // check eventKind
             if (eventKind != JDWP.EventKind.CLASS_UNLOAD) {
                 log.complain("Unexpected eventKind of event " + i + " in tested event packet: " +
                             eventKind + " (expected: " + JDWP.EventKind.CLASS_UNLOAD + ")");
                 success = false;
                 return;
             }

             // check suspendPolicy value
             if (suspendPolicy != TESTED_EVENT_SUSPEND_POLICY) {
                 log.complain("Unexpected SuspendPolicy in tested event packet: " +
                             suspendPolicy + " (expected: " + TESTED_EVENT_SUSPEND_POLICY + ")");
                 success = false;
             }

             // get requestID
             int requestID = 0;
             try {
                 requestID = eventPacket.getInt();
                 log.display("      requestID: " + requestID);
             } catch (BoundException e) {
                 log.complain("Unable to get requestID of event #" + i + " from tested event packet:\n\t"
                             + e.getMessage());
                 success = false;
                 return;
             }

             // check requestID
             if (requestID != eventRequestID) {
                 log.complain("Unexpected requestID of event " + i + " in tested event packet: " +
                             requestID + " (expected: " + eventRequestID + ")");
                 success = false;
             }

             // get signature
             String signature = null;
             try {
                 signature = eventPacket.getString();
                 log.display("      signature: " + signature);
             } catch (BoundException e) {
                 log.complain("Unable to get class signature of event #" + i + " from tested event packet:\n\t"
                             + e.getMessage());
                 success = false;
                 return;
             }

             // check signature
             if (!signature.equals(TESTED_CLASS_SIGNATURE)) {
                 log.complain("Unexpected class signature of event " + i + " in tested event packet: " +
                             signature + " (expected: " + TESTED_CLASS_SIGNATURE + ")");
                 success = false;
             }
         }

         // check for extra data in event packet
         if (!eventPacket.isParsed()) {
             log.complain("Extra trailing bytes found in event packet at: "
                         + eventPacket.offsetString());
             success = false;
         }

         log.display("  ... event packet parsed");
     }

     /**
      * Disconnect debuggee and wait for it exited.
      */
     void quitDebugee() {
         if (debugee == null)
             return;

         // disconnect debugee
         if (!dead) {
             try {
                 log.display("Disconnecting debuggee");
                 debugee.dispose();
                 log.display("  ... debuggee disconnected");
             } catch (Failure e) {
                 log.display("Failed to finally disconnect debuggee:\n\t"
                             + e.getMessage());
             }
         }

         // wait for debugee exited
         log.display("Waiting for debuggee exit");
         int code = debugee.waitFor();
         log.display("  ... debuggee exited with exit code: " + code);

         // analize debugee exit status code
         if (code != JCK_STATUS_BASE + PASSED) {
             log.complain("Debuggee FAILED with exit code: " + code);
             success = false;
         }
     }

 }
	/*
	* Copyright (c) 2001, 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.jdwp.Event.CLASS_UNLOAD;

	import java.io.*;

	import nsk.share.*;
	import nsk.share.jpda.*;
	import nsk.share.jdwp.*;

	/**
	* Test for JDWP event: CLASS_UNLOAD.
	*
	* See clsunload001.README for description of test execution.
	*
	* This class represents debugger part of the test.
	* Test is executed by invoking method runIt().
	* JDWP event is tested in the method waitForTestedEvent().
	*
	* @see #runIt()
	* @see #waitForTestedEvent()
	*/
	public class clsunload001 {

	// exit status constants
	static final int JCK_STATUS_BASE = 95;
	static final int PASSED = 0;
	static final int FAILED = 2;

	// package and classes names constants
	static final String PACKAGE_NAME = "nsk.jdwp.Event.CLASS_UNLOAD";
	static final String TEST_CLASS_NAME = PACKAGE_NAME + "." + "clsunload001";
	static final String DEBUGEE_CLASS_NAME = TEST_CLASS_NAME + "a";

	// tested JDWP event constants
	static final byte TESTED_EVENT_KIND = JDWP.EventKind.CLASS_UNLOAD;
	static final byte TESTED_EVENT_SUSPEND_POLICY = JDWP.SuspendPolicy.ALL;

	// name and signature of the tested class
	static final String TESTED_CLASS_NAME = DEBUGEE_CLASS_NAME + "$" + "TestedClass";
	static final String TESTED_CLASS_SIGNATURE = "L" + TESTED_CLASS_NAME.replace('.', '/') + ";";

	// usual scaffold objects
	ArgumentHandler argumentHandler = null;
	Log log = null;
	Binder binder = null;
	Debugee debugee = null;
	Transport transport = null;
	int waitTime = 0; // minutes
	long timeout = 0; // milliseconds
	boolean dead = false;
	boolean success = true;

	// obtained data
	int eventRequestID = 0;

	// -------------------------------------------------------------------

	/**
	* Start test from command line.
	*/
	public static void main(String argv[]) {
	System.exit(run(argv,System.out) + JCK_STATUS_BASE);
	}

	/**
	* Start test from JCK-compilant environment.
	*/
	public static int run(String argv[], PrintStream out) {
	return new clsunload001().runIt(argv, out);
	}

	// -------------------------------------------------------------------

	/**
	* Perform test execution.
	*/
	public int runIt(String argv[], PrintStream out) {

	// make log for debugger messages
	argumentHandler = new ArgumentHandler(argv);
	log = new Log(out, argumentHandler);
	waitTime = argumentHandler.getWaitTime();
	timeout = waitTime * 60 * 1000;

	// execute test and display results
	try {
	log.display("\n>>> Starting debugee \n");

	// launch debuggee
	binder = new Binder(argumentHandler, log);
	log.display("Launching debugee");
	debugee = binder.bindToDebugee(DEBUGEE_CLASS_NAME);
	transport = debugee.getTransport();
	log.display(" ... debugee launched");
	log.display("");

	// set timeout for debuggee responces
	log.display("Setting timeout for debuggee responces: " + waitTime + " minute(s)");
	transport.setReadTimeout(timeout);
	log.display(" ... timeout set");

	// wait for debuggee started
	log.display("Waiting for VM_INIT event");
	debugee.waitForVMInit();
	log.display(" ... VM_INIT event received");

	// query debugee for VM-dependent ID sizes
	log.display("Querying for IDSizes");
	debugee.queryForIDSizes();
	log.display(" ... size of VM-dependent types adjusted");

	// make request for CLASS_UNLOAD event
	log.display("\n>>> Making request for tested event \n");

	log.display("Making request for CLASS_UNLOAD event for class:\n\t"
	+ TESTED_CLASS_NAME);
	requestTestedEvent();
	log.display(" ... got requestID: " + eventRequestID);

	log.display("Resumindg debuggee");
	debugee.resume();
	log.display(" ... debuggee resumed");

	// wait for tested CLASS_UNLOAD event
	log.display("\n>>> Testing JDWP event \n");
	waitForTestedEvent();

	if (!dead) {
	// clear tested request for CLASS_UNLOAD event
	log.display("\n>>> Clearing request for tested event \n");
	clearTestedRequest();

	// finish debuggee after testing
	log.display("\n>>> Finishing debuggee \n");

	// resume debuggee
	log.display("Resuming debuggee");
	debugee.resume();
	log.display(" ... debuggee resumed");

	// wait for debuggee exited
	log.display("Waiting for VM_DEATH event");
	debugee.waitForVMDeath();
	dead = true;
	log.display(" ... VM_DEATH event received");
	}

	} catch (Failure e) {
	log.complain("TEST FAILED: " + e.getMessage());
	success = false;
	} catch (Exception e) {
	e.printStackTrace(out);
	log.complain("Caught unexpected exception while running the test:\n\t" + e);
	success = false;
	} finally {
	// quit debugee
	log.display("\n>>> Finishing test \n");
	quitDebugee();
	}

	// check test results
	if (!success) {
	log.complain("TEST FAILED");
	return FAILED;
	}

	out.println("TEST PASSED");
	return PASSED;

	}

	/**
	* Make request for tested CLASS_UNLOAD event.
	*/
	void requestTestedEvent() {
	Failure failure = new Failure("Error occured while makind request for tested event");

	// create command packet and fill requred out data
	log.display("Create command packet: " + "EventRequest.Set");
	CommandPacket command = new CommandPacket(JDWP.Command.EventRequest.Set);
	log.display(" eventKind: " + TESTED_EVENT_KIND);
	command.addByte(TESTED_EVENT_KIND);
	log.display(" eventPolicy: " + TESTED_EVENT_SUSPEND_POLICY);
	command.addByte(TESTED_EVENT_SUSPEND_POLICY);
	log.display(" modifiers: " + 1);
	command.addInt(1);
	log.display(" modKind: " + JDWP.EventModifierKind.CLASS_MATCH);
	command.addByte(JDWP.EventModifierKind.CLASS_MATCH);
	log.display(" classPattern: " + TESTED_CLASS_NAME);
	command.addString(TESTED_CLASS_NAME);
	command.setLength();
	log.display(" ... command packet composed");

	// send command packet to debugee
	try {
	log.display("Sending command packet:\n" + command);
	transport.write(command);
	log.display(" ... command packet sent");
	} catch (IOException e) {
	log.complain("Unable to send command packet:\n\t" + e);
	success = false;
	throw failure;
	}

	ReplyPacket reply = new ReplyPacket();

	// receive reply packet from debugee
	try {
	log.display("Waiting for reply packet");
	transport.read(reply);
	log.display(" ... packet received:\n" + reply);
	} catch (IOException e) {
	log.complain("Unable to read reply packet:\n\t" + e);
	success = false;
	throw failure;
	}

	// check reply packet header
	try{
	log.display("Checking header of reply packet");
	reply.checkHeader(command.getPacketID());
	log.display(" .. packet header is correct");
	} catch (BoundException e) {
	log.complain("Bad header of reply packet:\n\t" + e.getMessage());
	success = false;
	throw failure;
	}

	// start parsing reply packet data
	log.display("Parsing reply packet:");
	reply.resetPosition();

	// extract requestID
	int requestID = 0;
	try {
	requestID = reply.getInt();
	log.display(" requestID: " + requestID);
	} catch (BoundException e) {
	log.complain("Unable to extract requestID from request reply packet:\n\t"
	+ e.getMessage());
	success = false;
	throw failure;
	}

	// check requestID
	if (requestID == 0) {
	log.complain("Unexpected null requestID returned: " + requestID);
	success = false;
	throw failure;
	}

	eventRequestID = requestID;

	// check for extra data in reply packet
	if (!reply.isParsed()) {
	log.complain("Extra trailing bytes found in request reply packet at: "
	+ reply.offsetString());
	success = false;
	}

	log.display(" ... reply packet parsed");
	}

	/**
	* Clear request for tested CLASS_UNLOAD event.
	*/
	void clearTestedRequest() {
	Failure failure = new Failure("Error occured while clearing request for tested event");

	// create command packet and fill requred out data
	log.display("Create command packet: " + "EventRequest.Clear");
	CommandPacket command = new CommandPacket(JDWP.Command.EventRequest.Clear);
	log.display(" event: " + TESTED_EVENT_KIND);
	command.addByte(TESTED_EVENT_KIND);
	log.display(" requestID: " + eventRequestID);
	command.addInt(eventRequestID);
	log.display(" ... command packet composed");

	// send command packet to debugee
	try {
	log.display("Sending command packet:\n" + command);
	transport.write(command);
	log.display(" ... command packet sent");
	} catch (IOException e) {
	log.complain("Unable to send command packet:\n\t" + e);
	success = false;
	throw failure;
	}

	ReplyPacket reply = new ReplyPacket();

	// receive reply packet from debugee
	try {
	log.display("Waiting for reply packet");
	transport.read(reply);
	log.display(" ... packet received:\n" + reply);
	} catch (IOException e) {
	log.complain("Unable to read reply packet:\n\t" + e);
	success = false;
	throw failure;
	}

	// check reply packet header
	try{
	log.display("Checking header of reply packet");
	reply.checkHeader(command.getPacketID());
	log.display(" .. packet header is correct");
	} catch (BoundException e) {
	log.complain("Bad header of reply packet:\n\t" + e.getMessage());
	success = false;
	throw failure;
	}

	// start parsing reply packet data
	log.display("Parsing reply packet:");
	reply.resetPosition();

	log.display(" no data");

	// check for extra data in reply packet
	if (!reply.isParsed()) {
	log.complain("Extra trailing bytes found in request reply packet at: "
	+ reply.offsetString());
	success = false;
	}

	log.display(" ... reply packet parsed");
	}

	/**
	* Wait for tested CLASS_UNLOAD event.
	*/
	void waitForTestedEvent() {

	EventPacket eventPacket = null;

	// receive reply packet from debugee
	try {
	log.display("Waiting for event packet (for " + timeout + "ms timeout)");
	eventPacket = debugee.getEventPacket(timeout);
	log.display(" ... event packet received:\n" + eventPacket);
	} catch (IOException e) {
	log.complain("Unable to read tested event packet:\n\t" + e);
	success = false;
	return;
	}

	// check reply packet header
	try{
	log.display("Checking header of event packet");
	eventPacket.checkHeader();
	log.display(" ... packet header is correct");
	} catch (BoundException e) {
	log.complain("Bad header of tested event packet:\n\t"
	+ e.getMessage());
	success = false;
	return;
	}

	// start parsing reply packet data
	log.display("Parsing event packet:");
	eventPacket.resetPosition();

	// get suspendPolicy value
	byte suspendPolicy = 0;
	try {
	suspendPolicy = eventPacket.getByte();
	log.display(" suspendPolicy: " + suspendPolicy);
	} catch (BoundException e) {
	log.complain("Unable to get suspendPolicy value from tested event packet:\n\t"
	+ e.getMessage());
	success = false;
	return;
	}

	// get events count
	int events = 0;
	try {
	events = eventPacket.getInt();
	log.display(" events: " + events);
	} catch (BoundException e) {
	log.complain("Unable to get events count from tested event packet:\n\t"
	+ e.getMessage());
	success = false;
	return;
	}

	// check events count
	if (events < 0) {
	log.complain("Negative value of events number in tested event packet: " +
	events + " (expected: " + 1 + ")");
	success = false;
	} else if (events != 1) {
	log.complain("Invalid number of events in tested event packet: " +
	events + " (expected: " + 1 + ")");
	success = false;
	}

	// extract each event
	for (int i = 0; i < events; i++) {
	log.display(" event #" + i + ":");

	// get eventKind
	byte eventKind = 0;
	try {
	eventKind = eventPacket.getByte();
	log.display(" eventKind: " + eventKind);
	} catch (BoundException e) {
	log.complain("Unable to get eventKind of event #" + i + " from tested event packet:\n\t"
	+ e.getMessage());
	success = false;
	return;
	}

	// check if VM_DEATH event
	if (eventKind == JDWP.EventKind.VM_DEATH) {
	log.display("Got VM_DEATH event while waiting for tested event");
	dead = true;
	log.println("No CLASS_UNLOAD event occured at all so treat test as PASSED");
	return;
	}

	// check eventKind
	if (eventKind != JDWP.EventKind.CLASS_UNLOAD) {
	log.complain("Unexpected eventKind of event " + i + " in tested event packet: " +
	eventKind + " (expected: " + JDWP.EventKind.CLASS_UNLOAD + ")");
	success = false;
	return;
	}

	// check suspendPolicy value
	if (suspendPolicy != TESTED_EVENT_SUSPEND_POLICY) {
	log.complain("Unexpected SuspendPolicy in tested event packet: " +
	suspendPolicy + " (expected: " + TESTED_EVENT_SUSPEND_POLICY + ")");
	success = false;
	}

	// get requestID
	int requestID = 0;
	try {
	requestID = eventPacket.getInt();
	log.display(" requestID: " + requestID);
	} catch (BoundException e) {
	log.complain("Unable to get requestID of event #" + i + " from tested event packet:\n\t"
	+ e.getMessage());
	success = false;
	return;
	}

	// check requestID
	if (requestID != eventRequestID) {
	log.complain("Unexpected requestID of event " + i + " in tested event packet: " +
	requestID + " (expected: " + eventRequestID + ")");
	success = false;
	}

	// get signature
	String signature = null;
	try {
	signature = eventPacket.getString();
	log.display(" signature: " + signature);
	} catch (BoundException e) {
	log.complain("Unable to get class signature of event #" + i + " from tested event packet:\n\t"
	+ e.getMessage());
	success = false;
	return;
	}

	// check signature
	if (!signature.equals(TESTED_CLASS_SIGNATURE)) {
	log.complain("Unexpected class signature of event " + i + " in tested event packet: " +
	signature + " (expected: " + TESTED_CLASS_SIGNATURE + ")");
	success = false;
	}
	}

	// check for extra data in event packet
	if (!eventPacket.isParsed()) {
	log.complain("Extra trailing bytes found in event packet at: "
	+ eventPacket.offsetString());
	success = false;
	}

	log.display(" ... event packet parsed");
	}

	/**
	* Disconnect debuggee and wait for it exited.
	*/
	void quitDebugee() {
	if (debugee == null)
	return;

	// disconnect debugee
	if (!dead) {
	try {
	log.display("Disconnecting debuggee");
	debugee.dispose();
	log.display(" ... debuggee disconnected");
	} catch (Failure e) {
	log.display("Failed to finally disconnect debuggee:\n\t"
	+ e.getMessage());
	}
	}

	// wait for debugee exited
	log.display("Waiting for debuggee exit");
	int code = debugee.waitFor();
	log.display(" ... debuggee exited with exit code: " + code);

	// analize debugee exit status code
	if (code != JCK_STATUS_BASE + PASSED) {
	log.complain("Debuggee FAILED with exit code: " + code);
	success = false;
	}
	}

	}