1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/compiler/8015436/Test8015436.java Thu May 30 11:46:39 2013 -0700
1.3 @@ -0,0 +1,74 @@
1.4 +/*
1.5 + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + */
1.26 +
1.27 +/*
1.28 + * @test
1.29 + * @bug 8015436
1.30 + * @summary the IK _initial_method_idnum value must be adjusted if overpass methods are added
1.31 + * @run main Test8015436
1.32 + *
1.33 + */
1.34 +
1.35 +/*
1.36 + * The test checks that a MemberName for the defaultMethod() is cached in
1.37 + * the class MemberNameTable without a crash in the VM fastdebug mode.
1.38 + * The original issue was that the InstanceKlass _initial_method_idnum was
1.39 + * not adjusted properly when the overpass methods are added to the class.
1.40 + * The expected/correct behavior: The test does not crash nor throw any exceptions.
1.41 + * All the invocations of the defaultMethod() must be completed successfully.
1.42 + */
1.43 +
1.44 +import java.lang.invoke.*;
1.45 +
1.46 +interface InterfaceWithDefaultMethod {
1.47 + public void someMethod();
1.48 +
1.49 + default public void defaultMethod(String str){
1.50 + System.out.println("defaultMethod() " + str);
1.51 + }
1.52 +}
1.53 +
1.54 +class Test8015436 implements InterfaceWithDefaultMethod {
1.55 + @Override
1.56 + public void someMethod() {
1.57 + System.out.println("someMethod() invoked");
1.58 + }
1.59 +
1.60 + public static void main(String[] args) throws Throwable {
1.61 + Test8015436 testObj = new Test8015436();
1.62 + testObj.someMethod();
1.63 + testObj.defaultMethod("invoked directly");
1.64 +
1.65 + MethodHandles.Lookup lookup = MethodHandles.lookup();
1.66 + MethodType mt = MethodType.methodType(void.class, String.class);
1.67 + MethodHandle mh = lookup.findVirtual(Test8015436.class, "defaultMethod", mt);
1.68 + mh.invokeExact(testObj, "invoked via a MethodHandle");
1.69 + }
1.70 +}
1.71 +
1.72 +/*
1.73 + * A successful execution gives the output:
1.74 + * someMethod() invoked
1.75 + * defaultMethod() invoked directly
1.76 + * defaultMethod() invoked via a MethodHandle
1.77 + */
