101 lines
3.4 KiB
Java
101 lines
3.4 KiB
Java
/*
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* Copyright (c) 2014, 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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package gc.arguments;
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/*
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* @test TestArrayAllocatorMallocLimit
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* @summary Sanity check that the ArrayAllocatorMallocLimit flag can be set.
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* The test helps verifying that size_t flags can be set/read.
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* @bug 8054823
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* @library /test/lib
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* @library /
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* @modules java.base/jdk.internal.misc
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* java.management
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* @run driver gc.arguments.TestArrayAllocatorMallocLimit
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*/
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import jdk.test.lib.Asserts;
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import jdk.test.lib.process.OutputAnalyzer;
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import java.math.BigInteger;
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public class TestArrayAllocatorMallocLimit {
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public static void main(String [] args) throws Exception {
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testDefaultValue();
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testSetValue();
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}
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private static final String flagName = "ArrayAllocatorMallocLimit";
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// size_t ArrayAllocatorMallocLimit = 18446744073709551615{experimental}
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private static final String printFlagsFinalPattern = " *size_t *" + flagName + " *:?= *(\\d+) *\\{experimental\\} *";
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public static void testDefaultValue() throws Exception {
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ProcessBuilder pb = GCArguments.createJavaProcessBuilder(
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"-XX:+UnlockExperimentalVMOptions", "-XX:+PrintFlagsFinal", "-version");
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OutputAnalyzer output = new OutputAnalyzer(pb.start());
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String value = output.firstMatch(printFlagsFinalPattern, 1);
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try {
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Asserts.assertNotNull(value, "Couldn't find size_t flag " + flagName);
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// A size_t is not always parseable with Long.parseValue,
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// use BigInteger instead.
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BigInteger biValue = new BigInteger(value);
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// Sanity check that we got a non-zero value.
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Asserts.assertNotEquals(biValue, "0");
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output.shouldHaveExitValue(0);
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} catch (Exception e) {
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System.err.println(output.getOutput());
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throw e;
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}
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}
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public static void testSetValue() throws Exception {
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long flagValue = 2048;
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ProcessBuilder pb = GCArguments.createJavaProcessBuilder(
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"-XX:+UnlockExperimentalVMOptions", "-XX:" + flagName + "=" + flagValue, "-XX:+PrintFlagsFinal", "-version");
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OutputAnalyzer output = new OutputAnalyzer(pb.start());
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String value = output.firstMatch(printFlagsFinalPattern, 1);
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try {
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Asserts.assertNotNull("Couldn't find size_t flag " + flagName);
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long longValue = Long.parseLong(value);
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Asserts.assertEquals(longValue, flagValue);
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output.shouldHaveExitValue(0);
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} catch (Exception e) {
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System.err.println(output.getOutput());
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throw e;
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}
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}
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}
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