1 /*
   2  * Copyright (c) 2013, 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  *  @summary Test ReferenceType.visibleMethods
  27  *  @bug 8028430
  28  *
  29  *  @author Staffan Larsen
  30  *
  31  *  @run build TestScaffold VMConnection TargetListener TargetAdapter
  32  *  @run compile -g VisibleMethods.java
  33  *  @run driver VisibleMethods
  34  */
  35 import com.sun.jdi.Method;
  36 import com.sun.jdi.ReferenceType;
  37 import com.sun.jdi.StackFrame;
  38 import com.sun.jdi.StringReference;
  39 import com.sun.jdi.ThreadReference;
  40 import com.sun.jdi.event.BreakpointEvent;
  41 
  42 import java.util.Arrays;
  43 import java.util.List;
  44 import java.util.stream.Collectors;
  45 
  46 /********** target program **********/
  47 
  48 interface Super {
  49     public void m(Object o); // This method should not be visible in AC
  50     public void m(String s); // This method should not be visible in AC
  51 }
  52 
  53 interface One extends Super {
  54     public void m(Object o);
  55     public void m1(); // Either this method or Two.m1 should be visible in AC
  56 }
  57 
  58 interface Two extends Super {
  59     public void m(String s);
  60     public void m1(); // Either this method or One.m1 should be visible in AC
  61 }
  62 
  63 abstract class AC implements One, Two {
  64 }
  65 
  66 class CC extends AC {
  67     public void m(Object o) {
  68     }
  69     public void m(String s) {
  70     }
  71     public void m1() {
  72     }
  73     public static void main(String[] args) {
  74         System.out.println("Goodbye from VisibleMethods!");
  75     }
  76 }
  77 
  78 /********** test program **********/
  79 
  80 public class VisibleMethods extends TestScaffold {
  81     ReferenceType targetClass;
  82     ThreadReference mainThread;
  83 
  84     VisibleMethods(String args[]) {
  85         super(args);
  86     }
  87 
  88     public static void main(String[] args) throws Exception {
  89         new VisibleMethods(args).startTests();
  90     }
  91 
  92     /********** test core **********/
  93 
  94     protected void runTests()
  95         throws Exception
  96     {
  97         /*
  98          * Run to String.<init>
  99          */
 100         startToMain("CC");
 101 
 102         ReferenceType ac = findReferenceType("AC");
 103         List<String> visible = ac.visibleMethods().
 104                 stream().
 105                 map(Method::toString).
 106                 collect(Collectors.toList());
 107 
 108         System.out.println("visibleMethods(): " + visible);
 109 
 110         verifyContains(visible, 1, "Two.m(java.lang.String)");
 111         verifyContains(visible, 1, "One.m(java.lang.Object)");
 112         verifyContains(visible, 0, "Super.m(java.lang.Object)");
 113         verifyContains(visible, 0, "Super.m(java.lang.String)");
 114         verifyContains(visible, 1, "Two.m1()", "One.m1()");
 115 
 116         /*
 117          * resume the target listening for events
 118          */
 119         listenUntilVMDisconnect();
 120     }
 121 
 122     private void verifyContains(List<String> methods, int matches,
 123             String... sigs) throws Exception {
 124         if (countMatches(methods, sigs) != matches) {
 125             throw new Exception("visibleMethods() should have contained "
 126                     + matches + " entry/entries from " + Arrays.toString(sigs));
 127         }
 128     }
 129 
 130     private int countMatches(List<String> list1, String[] list2) {
 131         int count = 0;
 132         for (String s1 : list1) {
 133             for (String s2 : list2) {
 134                 if (s1.equals(s2)) {
 135                     count++;
 136                 }
 137             }
 138         }
 139         return count;
 140     }
 141 }