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Java example source code file (MHIllegalAccess.java)
The MHIllegalAccess.java Java example source code/* * Copyright (c) 2013, 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 8022701 * @summary Illegal access exceptions via methodhandle invocations threw wrong error. * * @compile -XDignore.symbol.file BogoLoader.java InvokeSeveralWays.java MHIllegalAccess.java MethodSupplier.java * @run main/othervm MHIllegalAccess */ import java.lang.reflect.InvocationTargetException; import java.util.HashMap; import java.util.HashSet; import jdk.internal.org.objectweb.asm.ClassWriter; import jdk.internal.org.objectweb.asm.MethodVisitor; import jdk.internal.org.objectweb.asm.ClassVisitor; import jdk.internal.org.objectweb.asm.Opcodes; public class MHIllegalAccess implements Opcodes { public static void main(String args[]) throws Throwable { System.out.println("Classpath is " + System.getProperty("java.class.path")); System.out.println(); /** * Make method m be private to provoke an IllegalAccessError. */ BogoLoader.VisitorMaker privatize = new BogoLoader.VisitorMaker() { public ClassVisitor make(ClassVisitor cv) { return new ClassVisitor(Opcodes.ASM5, cv) { public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) { if (name.equals("m")) access = (access | ACC_PRIVATE) & ~ (ACC_PUBLIC | ACC_PROTECTED); return super.visitMethod(access, name, desc, signature, exceptions); } }; } }; /** * Rename method m as nemo to provoke a NoSuchMethodError. */ BogoLoader.VisitorMaker changeName = new BogoLoader.VisitorMaker() { public ClassVisitor make(ClassVisitor cv) { return new ClassVisitor(Opcodes.ASM5, cv) { public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) { if (name.equals("m")) name = "nemo"; return super.visitMethod(access, name, desc, signature, exceptions); } }; } }; int failures = 0; failures += testOneError(privatize, args, IllegalAccessError.class); failures += testOneError(changeName, args, NoSuchMethodError.class); if (failures > 0) { System.out.println("Saw " + failures + " failures, see standard out for details"); throw new Error("FAIL test"); } } /** * * @param vm VisitorMaker, to be stored in a table and passed to a BogoLoader * @param args A copy of the main args, to be passed on to InvokeSeveralWays.test * @param expected The class of the exception that should be thrown after * attempted invocation of MethodSupplier.m. * @throws ClassNotFoundException * @throws Throwable */ private static int testOneError(BogoLoader.VisitorMaker vm, String[] args, Class expected) throws ClassNotFoundException, Throwable { HashMap<String, BogoLoader.VisitorMaker> replace = new HashMap Other Java examples (source code examples)Here is a short list of links related to this Java MHIllegalAccess.java source code file: |
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