jdwp/src/test/java/org/apache/harmony/jpda/tests/jdwp/ObjectReference/DisableCollectionDebuggee.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

/**
 * @author Anatoly F. Bondarenko
 */

/**
 * Created on 04.03.2005
 */
package org.apache.harmony.jpda.tests.jdwp.ObjectReference;

import org.apache.harmony.jpda.tests.share.JPDADebuggeeSynchronizer;
import org.apache.harmony.jpda.tests.share.SyncDebuggee;

public class DisableCollectionDebuggee extends SyncDebuggee {
    
    static DisableCollectionObject001_01 checkedObject;
    static boolean checkedObject_Finalized = false; 
    static DisableCollectionObject001_02 patternObject;
    static boolean patternObject_Finalized = false; 

    @Override
    public void run() {
        logWriter.println("--> Debuggee: DisableCollectionDebuggee: START");
        
        checkedObject = new DisableCollectionObject001_01();
        patternObject = new DisableCollectionObject001_02();

        synchronizer.sendMessage(JPDADebuggeeSynchronizer.SGNL_READY);
        String messageFromTest = 
            synchronizer.receiveMessageWithoutException("DisableCollectionDebuggee(#1)");
        logWriter.println("--> messageFromTest = |" + messageFromTest + "|");
        if ( messageFromTest.equals("TO_FINISH")) {
            logWriter.println("--> Debuggee: DisableCollectionDebuggee: FINISH");
            return;
        }
        
        logWriter.println("--> Debuggee: BEFORE System.gc():");
        logWriter.println("--> Debuggee: checkedObject = " + 
                checkedObject);
        logWriter.println("--> Debuggee: checkedObject_UNLOADed = " + 
                checkedObject_Finalized);
        logWriter.println("--> Debuggee: patternObject = " + 
                patternObject);
        logWriter.println("--> Debuggee: patternObject_UNLOADed = " + 
                patternObject_Finalized);

        checkedObject = null;
        patternObject = null;
        long[][] longArray;
        int i = 0;
        try {
            longArray = new long[1000000][];
            int arraysNumberLimit = 7; // max - longArray.length
            logWriter.println
            ("--> Debuggee: memory depletion - creating 'long[1000000]' arrays (" + arraysNumberLimit + ")..."); 
            for (; i < arraysNumberLimit; i++) {
                longArray[i] = new long[1000000];
            }
        } catch ( OutOfMemoryError outOfMem ) {
            logWriter.println("--> Debuggee: OutOfMemoryError!!!");
            // logWriter.println("--> Debuggee: i = " + i);
        }
        longArray = null;
        System.gc();
        logWriter.println("--> Debuggee: AFTER System.gc():");
        logWriter.println("--> Debuggee: checkedObject = " + 
                checkedObject);
        logWriter.println("--> Debuggee: checkedObject_UNLOADed = " + 
                checkedObject_Finalized);
        logWriter.println("--> Debuggee: patternObject = " + 
                patternObject);
        logWriter.println("--> Debuggee: patternObject_UNLOADed = " + 
                patternObject_Finalized);

        String messageForTest = null;
        if ( checkedObject_Finalized ) {
            messageForTest = "Checked Object is UNLOADed!";
        } else {
            messageForTest = "Checked Object is NOT UNLOADed!";
        }
        logWriter.println("--> Debuggee: Send to test message: \"" + messageForTest + "\"");
        synchronizer.sendMessage(messageForTest);
        synchronizer.receiveMessageWithoutException("DisableCollectionDebuggee(#2)");

        logWriter.println("--> Debuggee: DisableCollectionDebuggee: FINISH");

    }

    public static void main(String [] args) {
        runDebuggee(DisableCollectionDebuggee.class);
    }

}

class DisableCollectionObject001_01 {
    @Override
    protected void finalize() throws Throwable {
        DisableCollectionDebuggee.checkedObject_Finalized = true;
        super.finalize();
    }
}   

class DisableCollectionObject001_02 {
    @Override
    protected void finalize() throws Throwable {
        DisableCollectionDebuggee.patternObject_Finalized = true;
        super.finalize();
    }
}