Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: test/compiler/8015436/Test8015436.java
test/compiler/8015436/Test8015436.java
- changeset 5209
- fe00365c8f31
- child 5215
- 2f004f9dc9e1
equal
deleted
inserted
replaced
| 5208:a1ebd310d5c1 | 5209:fe00365c8f31 |
|---|---|
| 1 /* | |
| 2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 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 | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 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. | |
| 22 */ | |
| 23 | |
| 24 /* | |
| 25 * @test | |
| 26 * @bug 8015436 | |
| 27 * @summary the IK _initial_method_idnum value must be adjusted if overpass methods are added | |
| 28 * @run main Test8015436 | |
| 29 * | |
| 30 */ | |
| 31 | |
| 32 /* | |
| 33 * The test checks that a MemberName for the defaultMethod() is cached in | |
| 34 * the class MemberNameTable without a crash in the VM fastdebug mode. | |
| 35 * The original issue was that the InstanceKlass _initial_method_idnum was | |
| 36 * not adjusted properly when the overpass methods are added to the class. | |
| 37 * The expected/correct behavior: The test does not crash nor throw any exceptions. | |
| 38 * All the invocations of the defaultMethod() must be completed successfully. | |
| 39 */ | |
| 40 | |
| 41 import java.lang.invoke.*; | |
| 42 | |
| 43 interface InterfaceWithDefaultMethod { | |
| 44 public void someMethod(); | |
| 45 | |
| 46 default public void defaultMethod(String str){ | |
| 47 System.out.println("defaultMethod() " + str); | |
| 48 } | |
| 49 } | |
| 50 | |
| 51 class Test8015436 implements InterfaceWithDefaultMethod { | |
| 52 @Override | |
| 53 public void someMethod() { | |
| 54 System.out.println("someMethod() invoked"); | |
| 55 } | |
| 56 | |
| 57 public static void main(String[] args) throws Throwable { | |
| 58 Test8015436 testObj = new Test8015436(); | |
| 59 testObj.someMethod(); | |
| 60 testObj.defaultMethod("invoked directly"); | |
| 61 | |
| 62 MethodHandles.Lookup lookup = MethodHandles.lookup(); | |
| 63 MethodType mt = MethodType.methodType(void.class, String.class); | |
| 64 MethodHandle mh = lookup.findVirtual(Test8015436.class, "defaultMethod", mt); | |
| 65 mh.invokeExact(testObj, "invoked via a MethodHandle"); | |
| 66 } | |
| 67 } | |
| 68 | |
| 69 /* | |
| 70 * A successful execution gives the output: | |
| 71 * someMethod() invoked | |
| 72 * defaultMethod() invoked directly | |
| 73 * defaultMethod() invoked via a MethodHandle | |
| 74 */ |
