hotspot/test/compiler/linkage/LinkageErrors.java

/*
 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
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 */
/*
 * @test
 * @bug 8132879
 * @compile CallSites.jasm
 * @run main/othervm -Xverify:all -Xbatch -XX:CompileCommand=dontinline,Test::test* LinkageErrors
 */

import java.lang.invoke.*;

interface I {
    void m1(int i);
    static void s1() {}
}

class A implements I {
    public void m1(int i) {}
}

class X {
    public        void m1(int i) {}
    public final  void f1(int i) {}
    public static void s1(int i) {}
}

public class LinkageErrors {
    final static MethodHandles.Lookup L = MethodHandles.lookup();

    static void test(MethodHandle mh) {
        try {
            mh.invokeExact();
            throw new AssertionError("No exception thrown");
        } catch (LinkageError e) {
            return; // expected
        } catch (AssertionError e) {
            throw e; // rethrow
        } catch (Throwable e) {
            throw new AssertionError("Unexpected exception", e);
        }
    }

    public static void main(String args[]) throws Throwable {
        Class<?> test = Class.forName("CallSites");

        // Non-existent method lookups.
        MethodHandle testI1 = L.findStatic(test, "testI1", MethodType.methodType(void.class, I.class));
        MethodHandle testX1 = L.findStatic(test, "testX1", MethodType.methodType(void.class, X.class));

        MethodHandle testI1_A    = testI1.bindTo(new A());
        MethodHandle testI1_null = testI1.bindTo(null);
        MethodHandle testX1_X    = testX1.bindTo(new X());
        MethodHandle testX1_null = testX1.bindTo(null);

        // invokestatic of instance methods.
        MethodHandle testI2 = L.findStatic(test, "testI2", MethodType.methodType(void.class));
        MethodHandle testX2 = L.findStatic(test, "testX2", MethodType.methodType(void.class));

        MethodHandle testI3 = L.findStatic(test, "testI3", MethodType.methodType(void.class, I.class));
        MethodHandle testX3 = L.findStatic(test, "testX3", MethodType.methodType(void.class, X.class));

        // Virtual invocation of static methods.
        MethodHandle testI3_A    = testI3.bindTo(new A());
        MethodHandle testI3_null = testI3.bindTo(null);
        MethodHandle testX3_X    = testX3.bindTo(new X());
        MethodHandle testX3_null = testX3.bindTo(null);

        for (int i = 0; i < 20_000; i++) {
            test(testI1_A);
            test(testI1_null);
            test(testX1_X);
            test(testX1_null);

            test(testI2);
            test(testX2);

            test(testI3_A);
            test(testI3_null);
            test(testX3_X);
            test(testX3_null);
        }

        System.out.println("TEST PASSED");
    }
}