1 /*
   2  * Copyright (c) 2002, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /**
  25  * @test
  26  * @bug 4621289
  27  * @summary vm.setDefaultStratum(null) causes a Null Ptr exception
  28  *
  29  * @author jjh
  30  *
  31  * @run build  TestScaffold VMConnection TargetListener TargetAdapter
  32  * @run compile -g SDENullTest.java
  33  * @run driver SDENullTest
  34  */
  35 import com.sun.jdi.*;
  36 import com.sun.jdi.event.*;
  37 import com.sun.jdi.request.*;
  38 
  39 import java.util.*;
  40 
  41     /********** target program **********/
  42 
  43 class SDENullTarg {
  44     public static void main(String[] args){
  45         System.out.println("Howdy!");
  46         System.out.println("Goodbye from SDENullTarg!");
  47     }
  48 }
  49 
  50     /********** test program **********/
  51 
  52 public class SDENullTest extends TestScaffold {
  53     ReferenceType targetClass;
  54     ThreadReference mainThread;
  55 
  56     SDENullTest (String args[]) {
  57         super(args);
  58     }
  59 
  60     public static void main(String[] args)      throws Exception {
  61         new SDENullTest(args).startTests();
  62     }
  63 
  64     /********** test core **********/
  65 
  66     protected void runTests() throws Exception {
  67         /*
  68          * Get to the top of main()
  69          * to determine targetClass and mainThread
  70          */
  71         BreakpointEvent bpe = startToMain("SDENullTarg");
  72         targetClass = bpe.location().declaringType();
  73         mainThread = bpe.thread();
  74         EventRequestManager erm = vm().eventRequestManager();
  75         vm().setDefaultStratum(null);
  76         if (!testFailed) {
  77             println("SDENullTest: passed");
  78         } else {
  79             throw new Exception("SDENullTest: failed");
  80         }
  81     }
  82 }