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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 {
m(Object o)48     public void m(Object o); // This method should not be visible in AC
m(String s)49     public void m(String s); // This method should not be visible in AC
50 }
51 
52 interface One extends Super {
m(Object o)53     public void m(Object o);
m1()54     public void m1(); // Either this method or Two.m1 should be visible in AC
55 }
56 
57 interface Two extends Super {
m(String s)58     public void m(String s);
m1()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 {
m(Object o)66     public void m(Object o) {
67     }
m(String s)68     public void m(String s) {
69     }
m1()70     public void m1() {
71     }
main(String[] args)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 
VisibleMethods(String args[])83     VisibleMethods(String args[]) {
84         super(args);
85     }
86 
main(String[] args)87     public static void main(String[] args) throws Exception {
88         new VisibleMethods(args).startTests();
89     }
90 
91     /********** test core **********/
92 
runTests()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 
verifyContains(List<String> methods, int matches, String... sigs)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 
countMatches(List<String> list1, String[] list2)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 }
141