50 lines
1.8 KiB
Java
50 lines
1.8 KiB
Java
/*
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* Copyright (c) 2022, 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 8290705
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* @summary Test correctness of the string concatenation optimization with
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* a store between StringBuffer allocation and constructor invocation.
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* @compile SideEffectBeforeConstructor.jasm
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* @run main/othervm -Xbatch compiler.stringopts.TestSideEffectBeforeConstructor
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*/
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package compiler.stringopts;
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public class TestSideEffectBeforeConstructor {
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public static void main(String[] args) {
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for (int i = 0; i < 100_000; ++i) {
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try {
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SideEffectBeforeConstructor.test(null);
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} catch (NullPointerException npe) {
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// Expected
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}
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}
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if (SideEffectBeforeConstructor.result != 100_000) {
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throw new RuntimeException("Unexpected result: " + SideEffectBeforeConstructor.result);
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}
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}
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}
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