diff --git a/test/jdk/java/nio/Buffer/UnmeteredTempBuffers.java b/test/jdk/java/nio/Buffer/UnmeteredTempBuffers.java new file mode 100644 index 00000000000..25249b7f7d6 --- /dev/null +++ b/test/jdk/java/nio/Buffer/UnmeteredTempBuffers.java @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +/** + * @test + * @bug 8344882 + * @summary Deallocation failure for temporary buffers + * @run junit/othervm -XX:MaxDirectMemorySize=32768 UnmeteredTempBuffers + */ +import java.io.InputStream; +import java.io.IOException; +import java.nio.ByteBuffer; +import java.nio.channels.FileChannel; +import java.nio.file.Files; +import java.nio.file.Path; +import static java.nio.file.StandardOpenOption.*; + +import org.junit.jupiter.params.ParameterizedTest; +import org.junit.jupiter.params.provider.ValueSource; +import static org.junit.jupiter.api.Assertions.*; + +public class UnmeteredTempBuffers { + @ParameterizedTest + @ValueSource(ints = {16384, 32768, 32769, 65536}) + void testFileChannel(int cap) throws IOException { + Path file = Files.createTempFile("prefix", "suffix"); + try (FileChannel ch = FileChannel.open(file, WRITE, DELETE_ON_CLOSE)) { + ByteBuffer buf = ByteBuffer.wrap(new byte[cap]); + try { + ch.write(buf); + } catch (OutOfMemoryError oome) { + throw new RuntimeException(oome); + } + } finally { + Files.deleteIfExists(file); + } + } + + @ParameterizedTest + @ValueSource(ints = {16384, 32768, 32769, 65536}) + void testInputStream(int cap) throws IOException { + Path file = Files.createTempFile("prefix", "suffix"); + try { + byte[] bytes = new byte[cap]; + Files.write(file, bytes); + try (InputStream in = Files.newInputStream(file)) { + in.read(bytes); + } catch (OutOfMemoryError oome) { + throw new RuntimeException(oome); + } + } finally { + Files.delete(file); + } + } +}