1 /* 2 * Copyright (c) 2016, 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 8132879 27 * @compile CallSites.jasm 28 * @run main/othervm -Xverify:all -Xbatch -XX:CompileCommand=dontinline,Test::test* LinkageErrors 29 */ 30 31 import java.lang.invoke.*; 32 33 interface I { 34 void m1(int i); 35 static void s1() {} 36 } 37 38 class A implements I { 39 public void m1(int i) {} 40 } 41 42 class X { 43 public void m1(int i) {} 44 public final void f1(int i) {} 45 public static void s1(int i) {} 46 } 47 48 public class LinkageErrors { 49 final static MethodHandles.Lookup L = MethodHandles.lookup(); 50 51 static void test(MethodHandle mh) { 52 try { 53 mh.invokeExact(); 54 throw new AssertionError("No exception thrown"); 55 } catch (LinkageError e) { 56 return; // expected 57 } catch (AssertionError e) { 58 throw e; // rethrow 59 } catch (Throwable e) { 60 throw new AssertionError("Unexpected exception", e); 61 } 62 } 63 64 public static void main(String args[]) throws Throwable { 65 Class<?> test = Class.forName("CallSites"); 66 67 // Non-existent method lookups. 68 MethodHandle testI1 = L.findStatic(test, "testI1", MethodType.methodType(void.class, I.class)); 69 MethodHandle testX1 = L.findStatic(test, "testX1", MethodType.methodType(void.class, X.class)); 70 71 MethodHandle testI1_A = testI1.bindTo(new A()); 72 MethodHandle testI1_null = testI1.bindTo(null); 73 MethodHandle testX1_X = testX1.bindTo(new X()); 74 MethodHandle testX1_null = testX1.bindTo(null); 75 76 // invokestatic of instance methods. 77 MethodHandle testI2 = L.findStatic(test, "testI2", MethodType.methodType(void.class)); 78 MethodHandle testX2 = L.findStatic(test, "testX2", MethodType.methodType(void.class)); 79 80 MethodHandle testI3 = L.findStatic(test, "testI3", MethodType.methodType(void.class, I.class)); 81 MethodHandle testX3 = L.findStatic(test, "testX3", MethodType.methodType(void.class, X.class)); 82 83 // Virtual invocation of static methods. 84 MethodHandle testI3_A = testI3.bindTo(new A()); 85 MethodHandle testI3_null = testI3.bindTo(null); 86 MethodHandle testX3_X = testX3.bindTo(new X()); 87 MethodHandle testX3_null = testX3.bindTo(null); 88 89 for (int i = 0; i < 20_000; i++) { 90 test(testI1_A); 91 test(testI1_null); 92 test(testX1_X); 93 test(testX1_null); 94 95 test(testI2); 96 test(testX2); 97 98 test(testI3_A); 99 test(testI3_null); 100 test(testX3_X); 101 test(testX3_null); 102 } 103 104 System.out.println("TEST PASSED"); 105 } 106 }