1 /*
   2  * Copyright (c) 2003, 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 4882798
  27  * @summary remove an transformer that was never added
  28  * @author Gabriel Adauto, Wily Technology
  29  *
  30  * @modules java.instrument
  31  * @run build RemoveAbsentTransformerTest
  32  * @run shell MakeJAR.sh redefineAgent
  33  * @run main/othervm -javaagent:redefineAgent.jar RemoveAbsentTransformerTest RemoveAbsentTransformerTest
  34  */
  35 import java.lang.instrument.*;
  36 
  37 public class
  38 RemoveAbsentTransformerTest
  39     extends ATransformerManagementTestCase
  40 {
  41 
  42     /**
  43      * Constructor for RemoveAbsentTransformerTest.
  44      * @param name
  45      */
  46     public RemoveAbsentTransformerTest(String name)
  47     {
  48         super(name);
  49     }
  50 
  51     public static void
  52     main (String[] args)
  53         throws Throwable {
  54         ATestCaseScaffold   test = new RemoveAbsentTransformerTest(args[0]);
  55         test.runTest();
  56     }
  57 
  58     protected final void
  59     doRunTest()
  60         throws Throwable {
  61         testRemoveNonExistentTransformer();
  62     }
  63 
  64     /**
  65      * Remove transformers that were not added
  66      */
  67     public void
  68     testRemoveNonExistentTransformer()
  69     {
  70         boolean result;
  71         ClassFileTransformer moreThanMeetsTheEye = new MyClassFileTransformer("NonExistent");
  72 
  73         addTransformerToManager(fInst, moreThanMeetsTheEye);
  74         removeTransformerFromManager(fInst, moreThanMeetsTheEye);
  75         result = fInst.removeTransformer(new MyClassFileTransformer("NonExistent2"));
  76         assertTrue(!result);
  77         result = fInst.removeTransformer(moreThanMeetsTheEye);
  78         assertTrue(!result);
  79 
  80         verifyTransformers(fInst);
  81     }
  82 
  83 }