1 /* 2 * Copyright (c) 2013, 2018, 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 package vm.mlvm.indy.func.jvmti.mergeCP_none2indy_a; 25 26 import vm.mlvm.share.MlvmTest; 27 28 import java.lang.invoke.*; 29 30 31 public class INDIFY_Dummy0 { 32 33 public static Boolean target(Object o, String s, int i) { 34 MlvmTest.getLog().display("Original target called! Object = " + o + "; string = " + s + "; int = " + i); 35 MlvmTest.getLog().display("The rest of methods are from " + (isRedefinedClass() ? "redefined" : "original") + " class"); 36 return false; 37 } 38 39 public static void redefineNow() {} 40 41 private static MethodHandle INDY_call; 42 private static MethodHandle INDY_call() throws Throwable { 43 if (INDY_call != null) 44 return INDY_call; 45 46 CallSite cs = (CallSite) MH_bootstrap().invokeWithArguments( 47 MethodHandles.lookup(), 48 "greet", 49 MethodType.methodType(Boolean.class, Object.class, String.class, int.class)); 50 51 return cs.dynamicInvoker(); 52 } 53 54 public static boolean invokeTarget() throws Throwable { 55 return invokeTarget0(); 56 } 57 58 private static boolean invokeTarget0() throws Throwable { 59 Object o = new Object(); 60 String s = "Original"; 61 int i = 456; 62 boolean b = target(o, s, i); 63 redefineNow(); 64 throw new RuntimeException("Original invokeTarget() method is executed after redefinition. Test failed."); 65 } 66 67 public static boolean isRedefinedClass() { 68 return false; 69 } 70 71 private static MethodType MT_bootstrap() { 72 return MethodType.methodType(CallSite.class, MethodHandles.Lookup.class, String.class, MethodType.class); 73 } 74 75 private static MethodHandle MH_bootstrap() throws NoSuchMethodException, IllegalAccessException { 76 return MethodHandles.lookup().findStatic( 77 INDIFY_Dummy0.class, 78 "bootstrap", 79 MT_bootstrap()); 80 } 81 82 public static CallSite bootstrap(MethodHandles.Lookup l, String name, MethodType mt) throws Throwable { 83 MlvmTest.getLog().display("Redefined bootstrap(): Lookup " + l + "; method name = " + name + "; method type = " + mt); 84 CallSite cs = new ConstantCallSite(l.findStatic(INDIFY_Dummy0.class, "target", mt)); 85 return cs; 86 } 87 }