| /* |
| * Copyright (c) 2017, 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. |
| */ |
| |
| /* @test |
| * @bug 8177146 |
| * @run testng/othervm TestMethodHandleBind |
| */ |
| |
| import org.testng.annotations.Test; |
| |
| import java.lang.invoke.MethodHandle; |
| import java.lang.invoke.MethodType; |
| |
| import static java.lang.invoke.MethodHandles.lookup; |
| |
| import static org.testng.Assert.*; |
| |
| public class TestMethodHandleBind extends pkg.A { |
| static class B extends TestMethodHandleBind {} |
| |
| @Test |
| public void testInstanceOfCallerClass() throws Throwable { |
| MethodHandle bound = lookup().bind(new TestMethodHandleBind() , "m1", MethodType.methodType(String.class)); |
| String x = (String)bound.invoke(); |
| assertEquals(x, this.getClass().getSimpleName()); |
| } |
| |
| @Test |
| public void testInstanceOfCallerSubclass() throws Throwable { |
| MethodHandle bound = lookup().bind(new B() , "m1", MethodType.methodType(String.class)); |
| // MethodHandle bound = lookup().findVirtual(B.class, "m1", MethodType.methodType(String.class)).bindTo(new B()); |
| String x = (String)bound.invoke(); |
| assertEquals(x, "B"); |
| } |
| |
| @Test |
| public void testInstanceOfReceiverClass() throws Throwable { |
| try { |
| MethodHandle bound = lookup().bind(new pkg.A() , "m1", MethodType.methodType(String.class)); |
| bound.invoke(); |
| fail("IllegalAccessException expected"); |
| } catch (IllegalAccessException e) { |
| } |
| } |
| |
| @Test |
| public void testPublicMethod() throws Throwable { |
| MethodHandle bound = lookup().bind(new pkg.A() , "m2", MethodType.methodType(String.class)); |
| String x = (String)bound.invoke(); |
| assertEquals(x, "A"); |
| } |
| |
| @Test |
| public void testPublicMethod2() throws Throwable { |
| MethodHandle bound = lookup().bind(new TestMethodHandleBind(), "m2", MethodType.methodType(String.class)); |
| String x = (String)bound.invoke(); |
| assertEquals(x, this.getClass().getSimpleName()); |
| } |
| |
| @Test |
| public void testInstanceOfCallerClassVarargs() throws Throwable { |
| MethodHandle bound = lookup().bind(new TestMethodHandleBind() , "m3", MethodType.methodType(String.class, String[].class)); |
| String x = (String)bound.invoke("a", "b", "c"); |
| assertEquals(x, this.getClass().getSimpleName() + "abc"); |
| } |
| |
| @Test |
| public void testInstanceOfReceiverClassVarargs() throws Throwable { |
| try { |
| MethodHandle bound = lookup().bind(new pkg.A(), "m3", MethodType.methodType(String.class, String[].class)); |
| bound.invoke(); |
| fail("IllegalAccessException expected"); |
| } catch (IllegalAccessException e) { |
| } |
| } |
| } |