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/*
* Copyright (c) 2011, 2018, 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.
*/
package vm.mlvm.indy.func.jvmti.redefineClassInTarget;
import java.lang.invoke.CallSite;
import java.lang.invoke.ConstantCallSite;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import vm.mlvm.share.MlvmTest;
public class INDIFY_Dummy0 {
private static MethodType MT_bootstrap() {
return MethodType.methodType(CallSite.class, MethodHandles.Lookup.class, String.class, MethodType.class);
}
private static MethodHandle MH_bootstrap() throws Throwable {
return MethodHandles.lookup().findStatic(
INDIFY_Dummy0.class,
"bootstrap",
MT_bootstrap());
}
public static CallSite bootstrap(MethodHandles.Lookup l, String name, MethodType mt) throws Throwable {
MlvmTest.getLog().display("Redefined bootstrap(): Lookup " + l + "; method name = " + name + "; method type = " + mt);
CallSite cs = new ConstantCallSite(l.findStatic(INDIFY_Dummy0.class, "target", mt));
return cs;
}
public static Boolean target(Object o, String s, int i) {
MlvmTest.getLog().display("Redefined target called! Object = " + o + "; string = " + s + "; int = " + i);
MlvmTest.getLog().display("The rest of methods are from " + (isRedefinedClass() ? "redefined" : "original") + " class");
return true;
}
public static void redefineNow() {}
private static MethodHandle INDY_call;
private static MethodHandle INDY_call() throws Throwable {
if (INDY_call != null)
return INDY_call;
CallSite cs = (CallSite) MH_bootstrap().invokeWithArguments(
MethodHandles.lookup(),
"greet",
MethodType.methodType(Boolean.class, Object.class, String.class, int.class));
return cs.dynamicInvoker();
}
public static boolean invokeTarget() throws Throwable {
return invokeTarget0();
}
private static boolean invokeTarget0() throws Throwable {
//return (boolean) InvokeDynamic.greet(new Object(), "Redefined", 456);
Object o = new Object();
String s = "Redefined";
int i = 456;
return (Boolean) INDY_call().invokeExact(o, s, i);
}
public static boolean isRedefinedClass() {
return true;
}
}
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