76 lines
2.7 KiB
Java
76 lines
2.7 KiB
Java
/*
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* Copyright (c) 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 8344882
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* @summary Deallocation failure for temporary buffers
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* @run junit/othervm -XX:MaxDirectMemorySize=32768 UnmeteredTempBuffers
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*/
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import java.io.InputStream;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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import java.nio.channels.FileChannel;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import static java.nio.file.StandardOpenOption.*;
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import org.junit.jupiter.params.ParameterizedTest;
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import org.junit.jupiter.params.provider.ValueSource;
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import static org.junit.jupiter.api.Assertions.*;
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public class UnmeteredTempBuffers {
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@ParameterizedTest
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@ValueSource(ints = {16384, 32768, 32769, 65536})
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void testFileChannel(int cap) throws IOException {
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Path file = Files.createTempFile("prefix", "suffix");
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try (FileChannel ch = FileChannel.open(file, WRITE, DELETE_ON_CLOSE)) {
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ByteBuffer buf = ByteBuffer.wrap(new byte[cap]);
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try {
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ch.write(buf);
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} catch (OutOfMemoryError oome) {
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throw new RuntimeException(oome);
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}
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} finally {
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Files.deleteIfExists(file);
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}
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}
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@ParameterizedTest
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@ValueSource(ints = {16384, 32768, 32769, 65536})
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void testInputStream(int cap) throws IOException {
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Path file = Files.createTempFile("prefix", "suffix");
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try {
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byte[] bytes = new byte[cap];
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Files.write(file, bytes);
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try (InputStream in = Files.newInputStream(file)) {
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in.read(bytes);
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} catch (OutOfMemoryError oome) {
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throw new RuntimeException(oome);
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}
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} finally {
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Files.delete(file);
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}
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}
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}
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