117 lines
4.3 KiB
Java
117 lines
4.3 KiB
Java
/*
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* Copyright (c) 2013, 2018, 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 8019184
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* @library /test/lib /java/lang/invoke/common
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* @summary MethodHandles.catchException() fails when methods have 8 args + varargs
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* @run main TestCatchExceptionWithVarargs
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*/
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import test.java.lang.invoke.lib.CodeCacheOverflowProcessor;
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import java.lang.invoke.MethodHandle;
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import java.lang.invoke.MethodHandles;
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import java.lang.invoke.MethodType;
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import java.util.LinkedList;
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import java.util.List;
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public class TestCatchExceptionWithVarargs {
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private static final Class<?> CLASS = TestCatchExceptionWithVarargs.class;
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private static final int MAX_MH_ARITY = 254;
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public static MethodHandle target;
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public static MethodHandle handler;
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private static Object firstArg;
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static class MyException extends Exception {
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}
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public static Object target(Object... a) throws Exception {
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if (a[0] != firstArg) {
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throw new AssertionError("first argument different than expected: "
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+ a[0] + " != " + firstArg);
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}
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throw new MyException();
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}
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public static Object handler(Object... a) {
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if (a[0] != firstArg) {
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throw new AssertionError("first argument different than expected: "
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+ a[0] + " != " + firstArg);
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}
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return a[0];
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}
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static {
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try {
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MethodType mtype = MethodType.methodType(Object.class, Object[].class);
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target = MethodHandles.lookup().findStatic(CLASS, "target", mtype);
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handler = MethodHandles.lookup().findStatic(CLASS, "handler", mtype);
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} catch (Exception e) {
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throw new AssertionError(e);
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}
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}
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public static void main(String[] args) throws Throwable {
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CodeCacheOverflowProcessor
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.runMHTest(TestCatchExceptionWithVarargs::test);
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}
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public static void test() throws Throwable {
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List<Class<?>> ptypes = new LinkedList<>();
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ptypes.add(Object[].class);
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// We use MAX_MH_ARITY - 1 here to account for the Object[] argument.
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for (int i = 1; i < MAX_MH_ARITY - 1; i++) {
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ptypes.add(0, Object.class);
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MethodHandle targetWithArgs = target.asType(
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MethodType.methodType(Object.class, ptypes));
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MethodHandle handlerWithArgs = handler.asType(
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MethodType.methodType(Object.class, ptypes));
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handlerWithArgs = MethodHandles.dropArguments(
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handlerWithArgs, 0, MyException.class);
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MethodHandle gwc1 = MethodHandles.catchException(
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targetWithArgs, MyException.class, handlerWithArgs);
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// The next line throws an IllegalArgumentException if there is a bug.
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MethodHandle gwc2 = MethodHandles.catchException(
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gwc1, MyException.class, handlerWithArgs);
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// This is only to verify that the method handles can actually be invoked and do the right thing.
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firstArg = new Object();
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Object o = gwc2.asSpreader(Object[].class, ptypes.size() - 1)
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.invoke(firstArg, new Object[i]);
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if (o != firstArg) {
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throw new AssertionError("return value different than expected: "
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+ o + " != " + firstArg);
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}
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}
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}
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}
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