87 lines
3.5 KiB
Java
87 lines
3.5 KiB
Java
/*
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* Copyright (c) 2014, 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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public class InlinedArrayCloneTestCase implements Runnable {
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private Test_ia32 executionController;
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public InlinedArrayCloneTestCase(Test_ia32 executionController) {
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this.executionController = executionController;
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}
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/*
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* Please leave following two methods (invokeArrayClone and verifyArguments)
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* static.
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*
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* It does not really matter if these methods are static or instance,
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* original issue could be reproduced in both cases, but if these methods
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* are static then it is much easier to understand that reproduced issue
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* is actually interpreter's stack corruption.
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*
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* If these methods are non-static, then interpreter's stack will contain
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* invalid 'this' pointer required for instance's method call and
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* verifyArguments' call may throw NullPointerException. There was another
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* issue w/ NPE after deoptimization addressed by JDK-6833129, so NPE looks
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* a little bit confusing.
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*
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* If these methods are static then after deptimization we'll get incorrect
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* arguments values in verifyArguments.
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* Something like "2, -1289936896, 3, 4" instead of "1, 2, 3, 4".
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* This information tells much more about actual issue comparing to NPE,
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* so it's preferable to leave these methods static.
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*/
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private static int verifyArguments(int i1, int i2, LoadedClass[] arr,
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int i3, int i4) {
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if (!(i1==1 && i2==2 && i3==3 && i4==4)) {
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throw new RuntimeException(String.format(
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"Arguments have unexpected values: %d, %d, %d, %d",
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i1, i2, i3, i4));
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}
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return arr.length;
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}
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private static int invokeArrayClone(LoadedClass[] a) {
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return InlinedArrayCloneTestCase.verifyArguments(1, 2, a.clone(), 3, 4);
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}
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@Override
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public void run() {
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LoadedClass[] array = executionController.getArray();
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int length;
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while (executionController.continueExecution()) {
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try {
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length = InlinedArrayCloneTestCase.invokeArrayClone(array);
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} catch (Throwable e) {
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e.printStackTrace();
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executionController.setTestFailed();
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return;
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}
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if (length != array.length) {
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System.out.println(String.format("f(array) returned %d "
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+ "instead of %d.", length, array.length));
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executionController.setTestFailed();
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}
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}
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}
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}
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