jdk/test/com/sun/jdi/VisibleMethods.java

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/**
 *  @test
 *  @summary Test ReferenceType.visibleMethods
 *  @bug 8028430
 *
 *  @author Staffan Larsen
 *
 *  @modules jdk.jdi
 *  @run build TestScaffold VMConnection TargetListener TargetAdapter
 *  @run compile -g VisibleMethods.java
 *  @run driver VisibleMethods
 */
import com.sun.jdi.Method;
import com.sun.jdi.ReferenceType;
import com.sun.jdi.StackFrame;
import com.sun.jdi.StringReference;
import com.sun.jdi.ThreadReference;
import com.sun.jdi.event.BreakpointEvent;

import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;

/********** target program **********/

interface Super {
    public void m(Object o); // This method should not be visible in AC
    public void m(String s); // This method should not be visible in AC
}

interface One extends Super {
    public void m(Object o);
    public void m1(); // Either this method or Two.m1 should be visible in AC
}

interface Two extends Super {
    public void m(String s);
    public void m1(); // Either this method or One.m1 should be visible in AC
}

abstract class AC implements One, Two {
}

class CC extends AC {
    public void m(Object o) {
    }
    public void m(String s) {
    }
    public void m1() {
    }
    public static void main(String[] args) {
        System.out.println("Goodbye from VisibleMethods!");
    }
}

/********** test program **********/

public class VisibleMethods extends TestScaffold {
    ReferenceType targetClass;
    ThreadReference mainThread;

    VisibleMethods(String args[]) {
        super(args);
    }

    public static void main(String[] args) throws Exception {
        new VisibleMethods(args).startTests();
    }

    /********** test core **********/

    protected void runTests()
        throws Exception
    {
        /*
         * Run to String.<init>
         */
        startToMain("CC");

        ReferenceType ac = findReferenceType("AC");
        List<String> visible = ac.visibleMethods().
                stream().
                map(Method::toString).
                collect(Collectors.toList());

        System.out.println("visibleMethods(): " + visible);

        verifyContains(visible, 1, "Two.m(java.lang.String)");
        verifyContains(visible, 1, "One.m(java.lang.Object)");
        verifyContains(visible, 0, "Super.m(java.lang.Object)");
        verifyContains(visible, 0, "Super.m(java.lang.String)");
        verifyContains(visible, 1, "Two.m1()", "One.m1()");

        /*
         * resume the target listening for events
         */
        listenUntilVMDisconnect();
    }

    private void verifyContains(List<String> methods, int matches,
            String... sigs) throws Exception {
        if (countMatches(methods, sigs) != matches) {
            throw new Exception("visibleMethods() should have contained "
                    + matches + " entry/entries from " + Arrays.toString(sigs));
        }
    }

    private int countMatches(List<String> list1, String[] list2) {
        int count = 0;
        for (String s1 : list1) {
            for (String s2 : list2) {
                if (s1.equals(s2)) {
                    count++;
                }
            }
        }
        return count;
    }
}