jdk/test/com/sun/jdi/SDENullTest.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
 * 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).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/**
 * @test
 * @bug 4621289
 * @summary vm.setDefaultStratum(null) causes a Null Ptr exception
 *
 * @author jjh
 *
 * @run build  TestScaffold VMConnection TargetListener TargetAdapter
 * @run compile -g SDENullTest.java
 * @run driver SDENullTest
 */
import com.sun.jdi.*;
import com.sun.jdi.event.*;
import com.sun.jdi.request.*;

import java.util.*;

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

class SDENullTarg {
    public static void main(String[] args){
        System.out.println("Howdy!");
        System.out.println("Goodbye from SDENullTarg!");
    }
}

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

public class SDENullTest extends TestScaffold {
    ReferenceType targetClass;
    ThreadReference mainThread;

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

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

    /********** test core **********/

    protected void runTests() throws Exception {
        /*
         * Get to the top of main()
         * to determine targetClass and mainThread
         */
        BreakpointEvent bpe = startToMain("SDENullTarg");
        targetClass = bpe.location().declaringType();
        mainThread = bpe.thread();
        EventRequestManager erm = vm().eventRequestManager();
        vm().setDefaultStratum(null);
        if (!testFailed) {
            println("SDENullTest: passed");
        } else {
            throw new Exception("SDENullTest: failed");
        }
    }
}