test/hotspot/jtreg/vmTestbase/nsk/jdwp/VirtualMachine/DisposeObjects/disposeobj001.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.VirtualMachine.DisposeObjects;

 import java.io.*;

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

 /**
  * Test for JDWP command: VirtualMachine.DisposeObjects.
  *
  * See disposeobj001.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 disposeobj001 {

     // 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 QUIT = "quit";

     // package and classes names constants
     static final String PACKAGE_NAME = "nsk.jdwp.VirtualMachine.DisposeObjects";
     static final String TEST_CLASS_NAME = PACKAGE_NAME + "." + "disposeobj001";
     static final String DEBUGEE_CLASS_NAME = TEST_CLASS_NAME + "a";

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

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

     // Number of references to free for tested objects
     static final int REF_COUNT = 3;

     // list of static fields with tested objects
     static final String fieldsList[] = {
                             "objectValue",
                             "stringValue",
                             "classValue"
                         };
     static final int fieldsCount = fieldsList.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 disposeobj001().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
             try {
                 log.display("\n>>> Obtaining requred data from debugee \n");

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

                 // query debuggee for objectIDs values of static fields
                 long objectIDs[] = getObjectIDs(classID);

                 // perform testing JDWP command
                 log.display("\n>>> Testing JDWP command \n");
                 testCommand(objectIDs);

             } finally {
                 // quit debugee
                 log.display("\n>>> Finishing test \n");
                 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.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 IDs of objects which are values of static fields.
      */
     long[] getObjectIDs(long classID) {
         long[] objectIDs = new long[fieldsCount];

         for (int i = 0; i < fieldsCount; i++ ) {
             String name = fieldsList[i];

             log.display("Getting fieldID of static field: " + name);
             long fieldID = debugee.getClassFieldID(classID, name, true);
             log.display("  got fieldID: " + fieldID);

             // query for objectID value REF_COUNT times
             log.display("Getting " + REF_COUNT + " times value of static fieldID: "
                         + fieldID);
             for (int j = 0; j < REF_COUNT; j++) {
                 JDWP.Value value = debugee.getStaticFieldValue(classID, fieldID);
                 log.display("  #" + i + ": got value: " + value);

                 if (value.getTag() != JDWP.Tag.OBJECT
                                             && value.getTag() != JDWP.Tag.STRING) {
                     throw new Failure("Not object value returned for static field \""
                                 + name + "\": " + value);
                 }
                 long objectID = ((Long)value.getValue()).longValue();

                 // check that returned objectID is the same
                 if (j > 0) {
                     if (objectID != objectIDs[i]) {
                         throw new Failure("Last request for object value returned"
                                         + " unexpected objectID: " + objectID
                                         + "(expected: " + objectIDs[i] + ")");
                     }
                 } else {
                     objectIDs[i] = objectID;
                 }
             }
         }
         return objectIDs;
     }

     /**
      * Perform testing JDWP command for specified TypeID.
      */
     void testCommand(long objectIDs[]) {
         // 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("  requested: " + fieldsCount);
         command.addInt(fieldsCount);

         for (int i = 0; i < fieldsCount; i++) {
             log.display("    object: " + objectIDs[i]);
             command.addObjectID(objectIDs[i]);
             log.display("      refCnt: " + REF_COUNT);
             command.addInt(REF_COUNT);
         }

         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;
         }

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

         // 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.VirtualMachine.DisposeObjects;

	import java.io.*;

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

	/**
	* Test for JDWP command: VirtualMachine.DisposeObjects.
	*
	* See disposeobj001.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 disposeobj001 {

	// 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 QUIT = "quit";

	// package and classes names constants
	static final String PACKAGE_NAME = "nsk.jdwp.VirtualMachine.DisposeObjects";
	static final String TEST_CLASS_NAME = PACKAGE_NAME + "." + "disposeobj001";
	static final String DEBUGEE_CLASS_NAME = TEST_CLASS_NAME + "a";

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

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

	// Number of references to free for tested objects
	static final int REF_COUNT = 3;

	// list of static fields with tested objects
	static final String fieldsList[] = {
	"objectValue",
	"stringValue",
	"classValue"
	};
	static final int fieldsCount = fieldsList.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 disposeobj001().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
	try {
	log.display("\n>>> Obtaining requred data from debugee \n");

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

	// query debuggee for objectIDs values of static fields
	long objectIDs[] = getObjectIDs(classID);

	// perform testing JDWP command
	log.display("\n>>> Testing JDWP command \n");
	testCommand(objectIDs);

	} finally {
	// quit debugee
	log.display("\n>>> Finishing test \n");
	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.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 IDs of objects which are values of static fields.
	*/
	long[] getObjectIDs(long classID) {
	long[] objectIDs = new long[fieldsCount];

	for (int i = 0; i < fieldsCount; i++ ) {
	String name = fieldsList[i];

	log.display("Getting fieldID of static field: " + name);
	long fieldID = debugee.getClassFieldID(classID, name, true);
	log.display(" got fieldID: " + fieldID);

	// query for objectID value REF_COUNT times
	log.display("Getting " + REF_COUNT + " times value of static fieldID: "
	+ fieldID);
	for (int j = 0; j < REF_COUNT; j++) {
	JDWP.Value value = debugee.getStaticFieldValue(classID, fieldID);
	log.display(" #" + i + ": got value: " + value);

	if (value.getTag() != JDWP.Tag.OBJECT
	&& value.getTag() != JDWP.Tag.STRING) {
	throw new Failure("Not object value returned for static field \""
	+ name + "\": " + value);
	}
	long objectID = ((Long)value.getValue()).longValue();

	// check that returned objectID is the same
	if (j > 0) {
	if (objectID != objectIDs[i]) {
	throw new Failure("Last request for object value returned"
	+ " unexpected objectID: " + objectID
	+ "(expected: " + objectIDs[i] + ")");
	}
	} else {
	objectIDs[i] = objectID;
	}
	}
	}
	return objectIDs;
	}

	/**
	* Perform testing JDWP command for specified TypeID.
	*/
	void testCommand(long objectIDs[]) {
	// 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(" requested: " + fieldsCount);
	command.addInt(fieldsCount);

	for (int i = 0; i < fieldsCount; i++) {
	log.display(" object: " + objectIDs[i]);
	command.addObjectID(objectIDs[i]);
	log.display(" refCnt: " + REF_COUNT);
	command.addInt(REF_COUNT);
	}

	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;
	}

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

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