| /* |
| * 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. |
| */ |
| |
| /* |
| * @test |
| * @bug 8132879 |
| * @compile CallSites.jasm |
| * @run main/othervm -Xverify:all -Xbatch |
| * -XX:CompileCommand=dontinline,compiler.linkage.LinkageErrors::test* |
| * compiler.linkage.LinkageErrors |
| */ |
| |
| package compiler.linkage; |
| |
| import java.lang.invoke.MethodHandle; |
| import java.lang.invoke.MethodHandles; |
| import java.lang.invoke.MethodType; |
| |
| 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("compiler.linkage.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"); |
| } |
| } |