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_indy2same_b; 25 26 import java.lang.invoke.CallSite; 27 import java.lang.invoke.ConstantCallSite; 28 import java.lang.invoke.MethodHandle; 29 import java.lang.invoke.MethodHandles; 30 import java.lang.invoke.MethodType; 31 32 import vm.mlvm.share.MlvmTest; 33 34 public class INDIFY_Dummy0 { 35 36 private static MethodType MT_bootstrap() { 37 return MethodType.methodType(CallSite.class, MethodHandles.Lookup.class, String.class, MethodType.class); 38 } 39 40 private static MethodHandle MH_bootstrap() throws NoSuchMethodException, IllegalAccessException { 41 return MethodHandles.lookup().findStatic( 42 INDIFY_Dummy0.class, 43 "bootstrap", 44 MT_bootstrap()); 45 } 46 47 public static CallSite bootstrap(MethodHandles.Lookup l, String name, MethodType mt) throws Throwable { 48 MlvmTest.getLog().display("bootstrap(): Lookup " + l + "; method name = " + name + "; method type = " + mt); 49 redefineNow(); 50 CallSite cs = new ConstantCallSite(l.findStatic(INDIFY_Dummy0.class, "target", mt)); 51 return cs; 52 } 53 54 public static Boolean target(Object o, String s, int i) { 55 MlvmTest.getLog().display("Target called! Object = " + o + "; string = " + s + "; int = " + i); 56 MlvmTest.getLog().display("The rest of methods are from " + (isRedefinedClass() ? "redefined" : "original") + " class"); 57 return false; 58 } 59 60 public static void redefineNow() {} 61 62 private static MethodHandle INDY_call; 63 private static MethodHandle INDY_call() throws Throwable { 64 if (INDY_call != null) 65 return INDY_call; 66 67 CallSite cs = (CallSite) MH_bootstrap().invokeWithArguments( 68 MethodHandles.lookup(), 69 "greet", 70 MethodType.methodType(Boolean.class, Object.class, String.class, int.class)); 71 72 return cs.dynamicInvoker(); 73 } 74 75 public static boolean invokeTarget() throws Throwable { 76 return invokeTarget0(); 77 } 78 79 private static boolean invokeTarget0() throws Throwable { 80 Object o = new Object(); 81 String s = ""; 82 int i = 456; 83 return (Boolean) INDY_call().invokeExact(o, s, i); 84 } 85 86 public static boolean isRedefinedClass() { 87 return false; 88 } 89 }