113 lines
4.3 KiB
Java
113 lines
4.3 KiB
Java
/*
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* Copyright (c) 2013, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8022701
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* @summary Illegal access exceptions via methodhandle invocations threw wrong error.
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* @enablePreview
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* @compile -XDignore.symbol.file BogoLoader.java InvokeSeveralWays.java MHIllegalAccess.java MethodSupplier.java
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* @run main/othervm MHIllegalAccess
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*/
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import java.lang.classfile.AccessFlags;
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import java.lang.classfile.ClassTransform;
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import java.lang.classfile.MethodModel;
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import java.lang.reflect.InvocationTargetException;
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import java.util.HashMap;
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import java.util.HashSet;
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import static java.lang.classfile.ClassFile.ACC_PRIVATE;
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import static java.lang.classfile.ClassFile.ACC_PROTECTED;
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import static java.lang.classfile.ClassFile.ACC_PUBLIC;
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public class MHIllegalAccess {
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public static void main(String[] args) throws Throwable {
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System.out.println("Classpath is " + System.getProperty("java.class.path"));
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System.out.println();
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/**
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* Make method m be private to provoke an IllegalAccessError.
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*/
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var privatize = ClassTransform.transformingMethods(m -> m.methodName().equalsString("m"), (mb, me) -> {
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if (me instanceof AccessFlags af) {
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mb.withFlags((af.flagsMask() | ACC_PRIVATE) & ~ (ACC_PUBLIC | ACC_PROTECTED));
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} else {
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mb.accept(me);
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}
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});
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/**
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* Rename method m as nemo to provoke a NoSuchMethodError.
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*/
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ClassTransform changeName = (cb, ce) -> {
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if (ce instanceof MethodModel mm && mm.methodName().equalsString("m")) {
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cb.withMethod("nemo", mm.methodTypeSymbol(), mm.flags().flagsMask(), mm::forEach);
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} else {
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cb.accept(ce);
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}
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};
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int failures = 0;
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failures += testOneError(privatize, args, IllegalAccessError.class);
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failures += testOneError(changeName, args, NoSuchMethodError.class);
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if (failures > 0) {
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System.out.println("Saw " + failures + " failures, see standard out for details");
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throw new Error("FAIL test");
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}
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}
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/**
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*
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* @param vm VisitorMaker, to be stored in a table and passed to a BogoLoader
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* @param args A copy of the main args, to be passed on to InvokeSeveralWays.test
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* @param expected The class of the exception that should be thrown after
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* attempted invocation of MethodSupplier.m.
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* @throws ClassNotFoundException
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* @throws Throwable
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*/
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private static int testOneError(ClassTransform vm, String[] args, Class<?> expected) throws ClassNotFoundException, Throwable {
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var replace = new HashMap<String, ClassTransform>();
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replace.put("MethodSupplier", vm);
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HashSet<String> in_bogus = new HashSet<String>();
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in_bogus.add("InvokeSeveralWays");
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in_bogus.add("MyFunctionalInterface");
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in_bogus.add("Invoker");
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BogoLoader bl = new BogoLoader(in_bogus, replace);
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Class<?> isw = bl.loadClass("InvokeSeveralWays");
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Object[] arg_for_args = new Object[2];
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arg_for_args[0] = args;
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arg_for_args[1] = expected;
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try {
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Object result = isw.getMethod("test", String[].class, Class.class).invoke(null, arg_for_args);
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return (Integer)result;
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} catch (InvocationTargetException e) {
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Throwable th = e.getCause();
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throw th == null ? e : th;
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}
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}
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}
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