test/hotspot/jtreg/vmTestbase/nsk/jdwp/StackFrame/GetValues/getvalues001.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.StackFrame.GetValues;

 import java.io.*;

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

 /**
  * Test for JDWP command: StackFrame.GetValues.
  *
  * See getvalues001.README for description of test execution.
  *
  * This class represents debugger part of the test.
  * Test is executed by invoking method runIt().
  * JDWP command is tested in the method testCommand().
  *
  * @see #runIt()
  * @see #testCommand()
  */
 public class getvalues001 {

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

     // communication signals constants
     static final String READY = "ready";
     static final String ERROR = "error";
     static final String QUIT = "quit";

     // package and classes names constants
     static final String PACKAGE_NAME = "nsk.jdwp.StackFrame.GetValues";
     static final String TEST_CLASS_NAME = PACKAGE_NAME + "." + "getvalues001";
     static final String DEBUGEE_CLASS_NAME = TEST_CLASS_NAME + "a";

     // tested JDWP command constants
     static final String JDWP_COMMAND_NAME = "StackFrame.GetValues";
     static final int JDWP_COMMAND_ID = JDWP.Command.StackFrame.GetValues;

     // tested class name and signature constants
     static final String TESTED_CLASS_NAME = DEBUGEE_CLASS_NAME + "$" + getvalues001a.OBJECT_CLASS_NAME;
     static final String TESTED_CLASS_SIGNATURE = "L" + TESTED_CLASS_NAME.replace('.', '/') + ";";

     // names of the static fields with the tested thread and object values
     static final String TESTED_THREAD_FIELD_NAME = getvalues001a.THREAD_FIELD_NAME;
     static final String TESTED_OBJECT_FIELD_NAME = getvalues001a.OBJECT_FIELD_NAME;
     static final String TESTED_OBJECT_METHOD_NAME = getvalues001a.OBJECT_METHOD_NAME;

     // list of tested variables names and values
     static final Object variables[][] = {
                     { "booleanValue", "boolean",  new Boolean(true),           new Byte(JDWP.Tag.BOOLEAN)},
                     { "byteValue",    "byte",     new Byte((byte)0x0F),        new Byte(JDWP.Tag.BYTE)   },
                     { "charValue",    "char",     new Character('Z'),          new Byte(JDWP.Tag.CHAR)   },
                     { "intValue",     "int",      new Integer(100),            new Byte(JDWP.Tag.INT)    },
                     { "shortValue",   "short",    new Short((short)10),        new Byte(JDWP.Tag.SHORT)  },
                     { "longValue",    "long",     new Long((long)1000000),     new Byte(JDWP.Tag.LONG)   },
                     { "floatValue",   "float",    new Float((float)3.14),      new Byte(JDWP.Tag.FLOAT)  },
                     { "doubleValue",  "double",   new Double((double)2.8e-12), new Byte(JDWP.Tag.DOUBLE) },
                     { "objectValue",  "objectID", new Long((long)0),           new Byte(JDWP.Tag.OBJECT) }
                 };
     static final int VARIABLES_COUNT = variables.length;

     // usual scaffold objects
     ArgumentHandler argumentHandler = null;
     Log log = null;
     Binder binder = null;
     Debugee debugee = null;
     Transport transport = null;
     IOPipe pipe = null;

     // test passed or not
     boolean success = true;

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

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

     /**
      * Start JCK-compilant test.
      */
     public static int run(String argv[], PrintStream out) {
         return new getvalues001().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);

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

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

             // make debuggee ready for testing
             prepareDebugee();

             // work with prepared debuggee
             long threadID = 0;
             try {
                 log.display("\n>>> Obtaining requred data from debugee \n");

                 // query debuggee for classID of tested class
                 log.display("Getting tested classID by signature:\n"
                             + "  " + TESTED_CLASS_SIGNATURE);
                 long classID = debugee.getReferenceTypeID(TESTED_CLASS_SIGNATURE);
                 log.display("  got classID: " + classID);

                 // query debuggee for tested methodID
                 log.display("Getting tested methodID by name: " + TESTED_OBJECT_METHOD_NAME);
                 long methodID = debugee.getMethodID(classID, TESTED_OBJECT_METHOD_NAME, true);
                 log.display("  got methodID: " + methodID);

                 // query debugee for indexes of the method local variables
                 log.display("Getting indexes of the tested local variables for methodID: " + methodID);
                 int indexes[] = queryVariableIndexes(classID, methodID);
                 log.display("  got indexes: " + indexes.length);

                 // query debuggee for tested objectID value from static field
                 log.display("Getting tested objectID value from static field: "
                             + TESTED_OBJECT_FIELD_NAME);
                 long objectID = queryObjectID(classID, TESTED_OBJECT_FIELD_NAME, JDWP.Tag.OBJECT);
                 log.display("  got objectID: " + objectID);

                 // query debuggee for tested threadID value from static field
                 log.display("Getting tested threadID value from static field: "
                             + TESTED_THREAD_FIELD_NAME);
                 threadID = queryObjectID(classID, TESTED_THREAD_FIELD_NAME, JDWP.Tag.THREAD);
                 log.display("  got threadID: " + threadID);

                 // suspend tested thread into debuggee
                 log.display("Suspending thread into debuggee for threadID: " + threadID);
                 debugee.suspendThread(threadID);
                 log.display("  thread suspended");

                 // query debuggee for current frameID of the tested thread
                 log.display("Getting current frameID for the threadID: "
                             + threadID);
                 long frameID = debugee.getCurrentFrameID(threadID);
                 log.display("  got frameID: " + frameID);

                 // perform testing JDWP command
                 log.display("\n>>> Testing JDWP command \n");
                 testCommand(frameID, threadID, indexes);

             } finally {
                 log.display("\n>>> Finishing test \n");

                 // resume suspended thread
                 if (threadID != 0) {
                     log.display("Resuming suspended thread");
                     debugee.resumeThread(threadID);
                 }

                 // quit debugee
                 quitDebugee();
             }

         } 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;
         }

         if (!success) {
             log.complain("TEST FAILED");
             return FAILED;
         }

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

     }

     /**
      * Prepare debugee for testing and waiting for ready signal.
      */
     void prepareDebugee() {
         // wait for VM_INIT event from debugee
         log.display("Waiting for VM_INIT event");
         debugee.waitForVMInit();

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

         // resume initially suspended debugee
         log.display("Resuming debugee VM");
         debugee.resume();

         // wait for READY signal from debugee
         log.display("Waiting for signal from debugee: " + READY);
         String signal = pipe.readln();
         log.display("Received signal from debugee: " + signal);
         if (signal == null) {
             throw new TestBug("Null signal received from debugee: " + signal
                             + " (expected: " + READY + ")");
         } else if (signal.equals(ERROR)) {
             throw new TestBug("Debugee was not able to start tested thread"
                             + " (received signal: " + signal + ")");
         } else if (!signal.equals(READY)) {
             throw new TestBug("Unexpected signal received from debugee: " + signal
                             + " (expected: " + READY + ")");
         }
     }

     /**
      * Sending debugee signal to quit and waiting for it exits.
      */
     void quitDebugee() {
         // send debugee signal to quit
         log.display("Sending signal to debugee: " + QUIT);
         pipe.println(QUIT);

         // wait for debugee exits
         log.display("Waiting for debugee exits");
         int code = debugee.waitFor();

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

     /**
      * Query debuggee for objectID value of static field of the class.
      */
     long queryObjectID(long classID, String fieldName, byte tag) {
         // get fieledID for static field (declared in the class)
         long fieldID = debugee.getClassFieldID(classID, fieldName, true);
         // get value of the field
         JDWP.Value value = debugee.getStaticFieldValue(classID, fieldID);

         // check that value has expected tag
         if (value.getTag() != tag) {
             throw new Failure("Unexpected tag for object value returned: "
                 + value.getTag() + " (expected: " + tag + ")");
         }

         // extract objectID from the value
         long objectID = ((Long)value.getValue()).longValue();
         return objectID;
     }

     /**
      * Query debugee for indexes of the local method variables.
      */
     int[] queryVariableIndexes(long classID, long methodID) {
         // create array for expected indexes
         int indexes[] = new int[VARIABLES_COUNT];
         for (int i = 0; i < VARIABLES_COUNT; i++) {
             indexes[i] = 0;
         }

         // obtain variable indexes from debuggee
         int count = 0;
         try {
             CommandPacket command = new CommandPacket(JDWP.Command.Method.VariableTable);
             command.addReferenceTypeID(classID);
             command.addMethodID(methodID);
             command.setLength();

             ReplyPacket reply = debugee.receiveReplyFor(command);
             reply.resetPosition();

             int argCount = reply.getInt();
             long slots = reply.getInt();
             if (slots < VARIABLES_COUNT) {
                 throw new Failure("Too few method local variables returned: " + slots
                                     + " (expected: at least " + VARIABLES_COUNT + ")");
             }

             for (int i = 0; i < slots; i++ ) {
                 long codeindex = reply.getLong();
                 String name = reply.getString();
                 String signature = reply.getString();
                 int length = reply.getInt();
                 int slot = reply.getInt();

                 for (int j = 0; j < VARIABLES_COUNT; j++) {
                     if (variables[j][0].equals(name)) {
                         indexes[j] = slot;
                         break;
                     }
                 }
             }

         } catch (BoundException e) {
             log.complain("Unable to extract local variable indexes from the reply packet:\n\t"
                             + e.getMessage());
             throw new Failure("Error occured while getting local variable indexes for methodID:"
                             + methodID);
         }

         return indexes;
     }

     /**
      * Check i-th value from the reply packet.
      */
     void checkValue(int i, JDWP.Value value) {
         if (!variables[i][2].equals(value.getValue())) {
             log.complain("Unexpected value for " + i + " variable ("
                             + variables[i][0] + ") received: " + value
                             + " (expected: " + variables[i][2] + ")");
             success = false;
         }
     }

     /**
      * Perform testing JDWP command for specified frameID.
      */
     void testCommand(long frameID, long threadID, int indexes[]) {
         int slots = indexes.length;

         // create command packet and fill requred out data
         log.display("Create command packet:");
         log.display("Command: " + JDWP_COMMAND_NAME);
         CommandPacket command = new CommandPacket(JDWP_COMMAND_ID);
         log.display("  threadID: " + threadID);
         command.addObjectID(threadID);
         log.display("  frameID: " + frameID);
         command.addFrameID(frameID);
         log.display("  slots: " + slots);
         command.addInt(slots);

         // add code indexes of the requested variables
         for (int i = 0; i < slots; i++) {
             log.display("    slot #" + i + ":");
             log.display("      slot: " + indexes[i]);
             command.addInt(indexes[i]);
             byte tag = ((Byte)variables[i][3]).byteValue();
             log.display("      sigbyte: " + tag);
             command.addByte(tag);
         }
         command.setLength();

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

         ReplyPacket reply = new ReplyPacket();

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

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

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

         // extract and check number of values
         int values = 0;
         try {
             values = reply.getInt();
             log.display("  values: " + values);

         } catch (BoundException e) {
             log.complain("Unable to extract number of values form reply packet:\n\t"
                         + e.getMessage());
             success = false;
             return;
         }

         // check if number of values are as expected
         if (values < 0) {
             log.complain("Negative number of values received:" + values
                         + " (expected: " + slots + ")");
             success = false;
         } else if (values != slots) {
             log.complain("Unexpected number of values received:" + values
                         + " (expected: " + slots + ")");
             success = false;
         }

         // extract and check each value
         for (int i = 0; i < values; i++ ) {
             log.display("  value #" + i + " (variable: " + variables[i][0] + ")");

             // extract value
             JDWP.Value value = null;
             try {
                 value = reply.getValue();
                 log.display("    slotValue: " + value);
             } catch (BoundException e) {
                 log.complain("Unable to extract " + i + " slot value:\n\t"
                             + e.getMessage());
                 success = false;
                 break;
             }

             // extract and check value by known type tag
             checkValue(i, value);
         }

         // check for extra data in reply packet
         if (!reply.isParsed()) {
             log.complain("Extra trailing bytes found in reply packet at: "
                         + reply.offsetString());
             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.StackFrame.GetValues;

	import java.io.*;

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

	/**
	* Test for JDWP command: StackFrame.GetValues.
	*
	* See getvalues001.README for description of test execution.
	*
	* This class represents debugger part of the test.
	* Test is executed by invoking method runIt().
	* JDWP command is tested in the method testCommand().
	*
	* @see #runIt()
	* @see #testCommand()
	*/
	public class getvalues001 {

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

	// communication signals constants
	static final String READY = "ready";
	static final String ERROR = "error";
	static final String QUIT = "quit";

	// package and classes names constants
	static final String PACKAGE_NAME = "nsk.jdwp.StackFrame.GetValues";
	static final String TEST_CLASS_NAME = PACKAGE_NAME + "." + "getvalues001";
	static final String DEBUGEE_CLASS_NAME = TEST_CLASS_NAME + "a";

	// tested JDWP command constants
	static final String JDWP_COMMAND_NAME = "StackFrame.GetValues";
	static final int JDWP_COMMAND_ID = JDWP.Command.StackFrame.GetValues;

	// tested class name and signature constants
	static final String TESTED_CLASS_NAME = DEBUGEE_CLASS_NAME + "$" + getvalues001a.OBJECT_CLASS_NAME;
	static final String TESTED_CLASS_SIGNATURE = "L" + TESTED_CLASS_NAME.replace('.', '/') + ";";

	// names of the static fields with the tested thread and object values
	static final String TESTED_THREAD_FIELD_NAME = getvalues001a.THREAD_FIELD_NAME;
	static final String TESTED_OBJECT_FIELD_NAME = getvalues001a.OBJECT_FIELD_NAME;
	static final String TESTED_OBJECT_METHOD_NAME = getvalues001a.OBJECT_METHOD_NAME;

	// list of tested variables names and values
	static final Object variables[][] = {
	{ "booleanValue", "boolean", new Boolean(true), new Byte(JDWP.Tag.BOOLEAN)},
	{ "byteValue", "byte", new Byte((byte)0x0F), new Byte(JDWP.Tag.BYTE) },
	{ "charValue", "char", new Character('Z'), new Byte(JDWP.Tag.CHAR) },
	{ "intValue", "int", new Integer(100), new Byte(JDWP.Tag.INT) },
	{ "shortValue", "short", new Short((short)10), new Byte(JDWP.Tag.SHORT) },
	{ "longValue", "long", new Long((long)1000000), new Byte(JDWP.Tag.LONG) },
	{ "floatValue", "float", new Float((float)3.14), new Byte(JDWP.Tag.FLOAT) },
	{ "doubleValue", "double", new Double((double)2.8e-12), new Byte(JDWP.Tag.DOUBLE) },
	{ "objectValue", "objectID", new Long((long)0), new Byte(JDWP.Tag.OBJECT) }
	};
	static final int VARIABLES_COUNT = variables.length;

	// usual scaffold objects
	ArgumentHandler argumentHandler = null;
	Log log = null;
	Binder binder = null;
	Debugee debugee = null;
	Transport transport = null;
	IOPipe pipe = null;

	// test passed or not
	boolean success = true;

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

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

	/**
	* Start JCK-compilant test.
	*/
	public static int run(String argv[], PrintStream out) {
	return new getvalues001().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);

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

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

	// make debuggee ready for testing
	prepareDebugee();

	// work with prepared debuggee
	long threadID = 0;
	try {
	log.display("\n>>> Obtaining requred data from debugee \n");

	// query debuggee for classID of tested class
	log.display("Getting tested classID by signature:\n"
	+ " " + TESTED_CLASS_SIGNATURE);
	long classID = debugee.getReferenceTypeID(TESTED_CLASS_SIGNATURE);
	log.display(" got classID: " + classID);

	// query debuggee for tested methodID
	log.display("Getting tested methodID by name: " + TESTED_OBJECT_METHOD_NAME);
	long methodID = debugee.getMethodID(classID, TESTED_OBJECT_METHOD_NAME, true);
	log.display(" got methodID: " + methodID);

	// query debugee for indexes of the method local variables
	log.display("Getting indexes of the tested local variables for methodID: " + methodID);
	int indexes[] = queryVariableIndexes(classID, methodID);
	log.display(" got indexes: " + indexes.length);

	// query debuggee for tested objectID value from static field
	log.display("Getting tested objectID value from static field: "
	+ TESTED_OBJECT_FIELD_NAME);
	long objectID = queryObjectID(classID, TESTED_OBJECT_FIELD_NAME, JDWP.Tag.OBJECT);
	log.display(" got objectID: " + objectID);

	// query debuggee for tested threadID value from static field
	log.display("Getting tested threadID value from static field: "
	+ TESTED_THREAD_FIELD_NAME);
	threadID = queryObjectID(classID, TESTED_THREAD_FIELD_NAME, JDWP.Tag.THREAD);
	log.display(" got threadID: " + threadID);

	// suspend tested thread into debuggee
	log.display("Suspending thread into debuggee for threadID: " + threadID);
	debugee.suspendThread(threadID);
	log.display(" thread suspended");

	// query debuggee for current frameID of the tested thread
	log.display("Getting current frameID for the threadID: "
	+ threadID);
	long frameID = debugee.getCurrentFrameID(threadID);
	log.display(" got frameID: " + frameID);

	// perform testing JDWP command
	log.display("\n>>> Testing JDWP command \n");
	testCommand(frameID, threadID, indexes);

	} finally {
	log.display("\n>>> Finishing test \n");

	// resume suspended thread
	if (threadID != 0) {
	log.display("Resuming suspended thread");
	debugee.resumeThread(threadID);
	}

	// quit debugee
	quitDebugee();
	}

	} 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;
	}

	if (!success) {
	log.complain("TEST FAILED");
	return FAILED;
	}

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

	}

	/**
	* Prepare debugee for testing and waiting for ready signal.
	*/
	void prepareDebugee() {
	// wait for VM_INIT event from debugee
	log.display("Waiting for VM_INIT event");
	debugee.waitForVMInit();

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

	// resume initially suspended debugee
	log.display("Resuming debugee VM");
	debugee.resume();

	// wait for READY signal from debugee
	log.display("Waiting for signal from debugee: " + READY);
	String signal = pipe.readln();
	log.display("Received signal from debugee: " + signal);
	if (signal == null) {
	throw new TestBug("Null signal received from debugee: " + signal
	+ " (expected: " + READY + ")");
	} else if (signal.equals(ERROR)) {
	throw new TestBug("Debugee was not able to start tested thread"
	+ " (received signal: " + signal + ")");
	} else if (!signal.equals(READY)) {
	throw new TestBug("Unexpected signal received from debugee: " + signal
	+ " (expected: " + READY + ")");
	}
	}

	/**
	* Sending debugee signal to quit and waiting for it exits.
	*/
	void quitDebugee() {
	// send debugee signal to quit
	log.display("Sending signal to debugee: " + QUIT);
	pipe.println(QUIT);

	// wait for debugee exits
	log.display("Waiting for debugee exits");
	int code = debugee.waitFor();

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

	/**
	* Query debuggee for objectID value of static field of the class.
	*/
	long queryObjectID(long classID, String fieldName, byte tag) {
	// get fieledID for static field (declared in the class)
	long fieldID = debugee.getClassFieldID(classID, fieldName, true);
	// get value of the field
	JDWP.Value value = debugee.getStaticFieldValue(classID, fieldID);

	// check that value has expected tag
	if (value.getTag() != tag) {
	throw new Failure("Unexpected tag for object value returned: "
	+ value.getTag() + " (expected: " + tag + ")");
	}

	// extract objectID from the value
	long objectID = ((Long)value.getValue()).longValue();
	return objectID;
	}

	/**
	* Query debugee for indexes of the local method variables.
	*/
	int[] queryVariableIndexes(long classID, long methodID) {
	// create array for expected indexes
	int indexes[] = new int[VARIABLES_COUNT];
	for (int i = 0; i < VARIABLES_COUNT; i++) {
	indexes[i] = 0;
	}

	// obtain variable indexes from debuggee
	int count = 0;
	try {
	CommandPacket command = new CommandPacket(JDWP.Command.Method.VariableTable);
	command.addReferenceTypeID(classID);
	command.addMethodID(methodID);
	command.setLength();

	ReplyPacket reply = debugee.receiveReplyFor(command);
	reply.resetPosition();

	int argCount = reply.getInt();
	long slots = reply.getInt();
	if (slots < VARIABLES_COUNT) {
	throw new Failure("Too few method local variables returned: " + slots
	+ " (expected: at least " + VARIABLES_COUNT + ")");
	}

	for (int i = 0; i < slots; i++ ) {
	long codeindex = reply.getLong();
	String name = reply.getString();
	String signature = reply.getString();
	int length = reply.getInt();
	int slot = reply.getInt();

	for (int j = 0; j < VARIABLES_COUNT; j++) {
	if (variables[j][0].equals(name)) {
	indexes[j] = slot;
	break;
	}
	}
	}

	} catch (BoundException e) {
	log.complain("Unable to extract local variable indexes from the reply packet:\n\t"
	+ e.getMessage());
	throw new Failure("Error occured while getting local variable indexes for methodID:"
	+ methodID);
	}

	return indexes;
	}

	/**
	* Check i-th value from the reply packet.
	*/
	void checkValue(int i, JDWP.Value value) {
	if (!variables[i][2].equals(value.getValue())) {
	log.complain("Unexpected value for " + i + " variable ("
	+ variables[i][0] + ") received: " + value
	+ " (expected: " + variables[i][2] + ")");
	success = false;
	}
	}

	/**
	* Perform testing JDWP command for specified frameID.
	*/
	void testCommand(long frameID, long threadID, int indexes[]) {
	int slots = indexes.length;

	// create command packet and fill requred out data
	log.display("Create command packet:");
	log.display("Command: " + JDWP_COMMAND_NAME);
	CommandPacket command = new CommandPacket(JDWP_COMMAND_ID);
	log.display(" threadID: " + threadID);
	command.addObjectID(threadID);
	log.display(" frameID: " + frameID);
	command.addFrameID(frameID);
	log.display(" slots: " + slots);
	command.addInt(slots);

	// add code indexes of the requested variables
	for (int i = 0; i < slots; i++) {
	log.display(" slot #" + i + ":");
	log.display(" slot: " + indexes[i]);
	command.addInt(indexes[i]);
	byte tag = ((Byte)variables[i][3]).byteValue();
	log.display(" sigbyte: " + tag);
	command.addByte(tag);
	}
	command.setLength();

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

	ReplyPacket reply = new ReplyPacket();

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

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

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

	// extract and check number of values
	int values = 0;
	try {
	values = reply.getInt();
	log.display(" values: " + values);

	} catch (BoundException e) {
	log.complain("Unable to extract number of values form reply packet:\n\t"
	+ e.getMessage());
	success = false;
	return;
	}

	// check if number of values are as expected
	if (values < 0) {
	log.complain("Negative number of values received:" + values
	+ " (expected: " + slots + ")");
	success = false;
	} else if (values != slots) {
	log.complain("Unexpected number of values received:" + values
	+ " (expected: " + slots + ")");
	success = false;
	}

	// extract and check each value
	for (int i = 0; i < values; i++ ) {
	log.display(" value #" + i + " (variable: " + variables[i][0] + ")");

	// extract value
	JDWP.Value value = null;
	try {
	value = reply.getValue();
	log.display(" slotValue: " + value);
	} catch (BoundException e) {
	log.complain("Unable to extract " + i + " slot value:\n\t"
	+ e.getMessage());
	success = false;
	break;
	}

	// extract and check value by known type tag
	checkValue(i, value);
	}

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

	}

	}