Java example source code file (DataModelTest.java)

This example Java source code file (DataModelTest.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

breakpointevent, datamodeltarg, datamodeltest, exception, expected, expecting, field, jdi, objectreference, referencetype, string, stringreference, testscaffold, util, value

The DataModelTest.java Java example source code

/*
 * Copyright (c) 2001, 2002, 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.
 */

/**
 *  @ test:it only runs from SparcToSparcV9Test.sh
 *  @bug 4478312
 *  @summary Test debugging with mixed 32/64bit VMs.
 *
 *  @author Tim Bell
 *
 *  The basic version of this test (32-bit to 32-bit) should pass
 *  on all platforms.  The SparcToSparcv9Test.sh script uses this
 *  test to exercise other combinations on SPARC v9 platforms only.
 *
 *  @run build TestScaffold VMConnection TargetListener TargetAdapter
 *  @run compile -g DataModelTest.java
 *  @run main DataModelTest
 */
import com.sun.jdi.*;
import com.sun.jdi.event.*;
import com.sun.jdi.request.*;

import java.util.*;

    /********** target program **********/

class DataModelTarg {
    static String dataModel;
    public DataModelTarg () {
        dataModel = System.getProperty("sun.arch.data.model");
    }
    public void ready () {
        System.out.println("sun.arch.data.model is: " + dataModel);
    }
    public static void main(String[] args){
        System.out.println("Howdy!");
        DataModelTarg my = new DataModelTarg();
        my.ready();
        System.out.println("Goodbye from DataModelTarg!");
    }
}

    /********** test program **********/

public class DataModelTest extends TestScaffold {

    DataModelTest (String args[]) {
        super(args);
    }

    public static void main(String[] args)      throws Exception {
        new DataModelTest(args).startTests();
    }

    protected void runTests() throws Exception {
        /*
         * Get to the top of ready()
         */
        BreakpointEvent bpe = startTo("DataModelTarg", "ready", "()V");

        ObjectReference targetObject = bpe.thread().frame(0).thisObject();
        ReferenceType rt = targetObject.referenceType();
        Field field = rt.fieldByName("dataModel");
        Value v = targetObject.getValue(field);
        StringReference sv = (StringReference) v;
        String expectedValue = System.getProperty("EXPECTED", "32");
        if (!expectedValue.equals(sv.value())) {
            failure("Expecting sun.arch.data.model = " + expectedValue +
                    " but got " + sv.value() + " instead.");
        }
        /*
         * resume the target listening for events
         */
        listenUntilVMDisconnect();

        /*
         * deal with results of test
         * if anything has called failure("foo") testFailed will be true
         */
        if (!testFailed) {
            println("DataModelTest: passed");
        } else {
            throw new Exception("DataModelTest: failed");
        }
    }
}