83 lines
2.6 KiB
Java
83 lines
2.6 KiB
Java
/*
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* Copyright (c) 2013, 2023, 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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package gc.serial;
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/*
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* @test HeapChangeLogging.java
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* @bug 8027440
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* @requires vm.gc.Serial
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* @library /test/lib
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* @modules java.base/jdk.internal.misc
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* @summary Allocate to get a promotion failure and verify that that heap change logging is present.
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* @run driver gc.serial.HeapChangeLogging
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*/
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import jdk.test.lib.process.ProcessTools;
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import jdk.test.lib.process.OutputAnalyzer;
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public class HeapChangeLogging {
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public static void main(String[] args) throws Exception {
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OutputAnalyzer output = ProcessTools.executeLimitedTestJava("-Xmx128m", "-Xmn100m", "-XX:+UseSerialGC", "-Xlog:gc", HeapFiller.class.getName());
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String stdout = output.getStdout();
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System.out.println(stdout);
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Matcher stdoutMatcher = Pattern.compile(".*\\(Allocation Failure\\) [0-9]+[KMG]->[0-9]+[KMG]\\([0-9]+[KMG]\\)", Pattern.MULTILINE).matcher(stdout);
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if (!stdoutMatcher.find()) {
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throw new RuntimeException("No proper GC log line found");
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}
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output.shouldHaveExitValue(0);
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}
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}
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class HeapFiller {
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public static Entry root;
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private static final int PAYLOAD_SIZE = 1000;
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public static void main(String[] args) {
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root = new Entry(PAYLOAD_SIZE, null);
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Entry current = root;
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try {
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while (true) {
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Entry newEntry = new Entry(PAYLOAD_SIZE, current);
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current = newEntry;
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}
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} catch (OutOfMemoryError e) {
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root = null;
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}
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}
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}
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class Entry {
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public Entry previous;
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public byte[] payload;
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Entry(int payloadSize, Entry previous) {
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payload = new byte[payloadSize];
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this.previous = previous;
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}
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}
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