1 /*
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   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
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  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.
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  23 
  24 /**
  25  * @test
  26  * @summary Test ReferenceType.visibleMethods
  27  * @bug 8028430
  28  * @author Staffan Larsen
  29  *
  30  * @run build TestScaffold VMConnection TargetListener TargetAdapter
  31  * @run compile -g VisibleMethods.java
  32  * @run driver VisibleMethods
  33  */
  34 import com.sun.jdi.Method;
  35 import com.sun.jdi.ReferenceType;
  36 import com.sun.jdi.StackFrame;
  37 import com.sun.jdi.StringReference;
  38 import com.sun.jdi.ThreadReference;
  39 import com.sun.jdi.event.BreakpointEvent;
  40 
  41 import java.util.Arrays;
  42 import java.util.List;
  43 import java.util.stream.Collectors;
  44 
  45 /********** target program **********/
  46 
  47 interface Super {
  48     public void m(Object o); // This method should not be visible in AC
  49     public void m(String s); // This method should not be visible in AC
  50 }
  51 
  52 interface One extends Super {
  53     public void m(Object o);
  54     public void m1(); // Either this method or Two.m1 should be visible in AC
  55 }
  56 
  57 interface Two extends Super {
  58     public void m(String s);
  59     public void m1(); // Either this method or One.m1 should be visible in AC
  60 }
  61 
  62 abstract class AC implements One, Two {
  63 }
  64 
  65 class CC extends AC {
  66     public void m(Object o) {
  67     }
  68     public void m(String s) {
  69     }
  70     public void m1() {
  71     }
  72     public static void main(String[] args) {
  73         System.out.println("Goodbye from VisibleMethods!");
  74     }
  75 }
  76 
  77 /********** test program **********/
  78 
  79 public class VisibleMethods extends TestScaffold {
  80     ReferenceType targetClass;
  81     ThreadReference mainThread;
  82 
  83     VisibleMethods(String args[]) {
  84         super(args);
  85     }
  86 
  87     public static void main(String[] args) throws Exception {
  88         new VisibleMethods(args).startTests();
  89     }
  90 
  91     /********** test core **********/
  92 
  93     protected void runTests()
  94         throws Exception
  95     {
  96         /*
  97          * Run to String.<init>
  98          */
  99         startToMain("CC");
 100 
 101         ReferenceType ac = findReferenceType("AC");
 102         List<String> visible = ac.visibleMethods().
 103                 stream().
 104                 map(Method::toString).
 105                 collect(Collectors.toList());
 106 
 107         System.out.println("visibleMethods(): " + visible);
 108 
 109         verifyContains(visible, 1, "Two.m(java.lang.String)");
 110         verifyContains(visible, 1, "One.m(java.lang.Object)");
 111         verifyContains(visible, 0, "Super.m(java.lang.Object)");
 112         verifyContains(visible, 0, "Super.m(java.lang.String)");
 113         verifyContains(visible, 1, "Two.m1()", "One.m1()");
 114 
 115         /*
 116          * resume the target listening for events
 117          */
 118         listenUntilVMDisconnect();
 119     }
 120 
 121     private void verifyContains(List<String> methods, int matches,
 122             String... sigs) throws Exception {
 123         if (countMatches(methods, sigs) != matches) {
 124             throw new Exception("visibleMethods() should have contained "
 125                     + matches + " entry/entries from " + Arrays.toString(sigs));
 126         }
 127     }
 128 
 129     private int countMatches(List<String> list1, String[] list2) {
 130         int count = 0;
 131         for (String s1 : list1) {
 132             for (String s2 : list2) {
 133                 if (s1.equals(s2)) {
 134                     count++;
 135                 }
 136             }
 137         }
 138         return count;
 139     }
 140 }