/* * Copyright (c) 2013, 2022, 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.
*/
package gc.arguments;
/* * @test TestMaxNewSizeSerial * @bug 7057939 * @summary Make sure that MaxNewSize always has a useful value after argument * processing. * @requires vm.gc.Serial * @library /test/lib * @library / * @modules java.base/jdk.internal.misc * java.management * @run driver gc.arguments.TestMaxNewSize -XX:+UseSerialGC * @author thomas.schatzl@oracle.com, jesper.wilhelmsson@oracle.com
*/
/* * @test TestMaxNewSizeParallel * @bug 7057939 * @summary Make sure that MaxNewSize always has a useful value after argument * processing. * @requires vm.gc.Parallel * @library /test/lib * @library / * @modules java.base/jdk.internal.misc * java.management * @run driver gc.arguments.TestMaxNewSize -XX:+UseParallelGC * @author thomas.schatzl@oracle.com, jesper.wilhelmsson@oracle.com
*/
/* * @test TestMaxNewSizeG1 * @bug 7057939 * @summary Make sure that MaxNewSize always has a useful value after argument * processing. * @requires vm.gc.G1 * @library /test/lib * @library / * @modules java.base/jdk.internal.misc * java.management * @run driver gc.arguments.TestMaxNewSize -XX:+UseG1GC * @author thomas.schatzl@oracle.com, jesper.wilhelmsson@oracle.com
*/
privatestaticvoid checkMaxNewSize(String[] flags, int heapsize) throws Exception {
BigInteger actual = new BigInteger(getMaxNewSize(flags));
System.out.println(actual); if (actual.compareTo(new BigInteger((newLong(heapsize)).toString())) == 1) { thrownew RuntimeException("MaxNewSize value set to \"" + actual + "\", expected otherwise when running with the following flags: " + Arrays.asList(flags).toString());
}
}
ProcessBuilder pb = GCArguments.createJavaProcessBuilder(finalargs);
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldContain("Initial young gen size set larger than the maximum young gen size");
}
privatestaticboolean isRunningG1(String[] args) { for (int i = 0; i < args.length; i++) { if (args[i].contains("+UseG1GC")) { returntrue;
}
} returnfalse;
}
privatestatic String getMaxNewSize(String[] flags) throws Exception {
ArrayList<String> finalargs = new ArrayList<String>();
finalargs.addAll(Arrays.asList(flags)); if (isRunningG1(flags)) {
finalargs.add("-XX:G1HeapRegionSize=1M");
}
finalargs.add("-XX:+PrintFlagsFinal");
finalargs.add("-version");
privatestatic String getFlagValue(String flag, String where) {
Matcher m = Pattern.compile(flag + "\\s+:?=\\s+\\d+").matcher(where); if (!m.find()) { thrownew RuntimeException("Could not find value for flag " + flag + " in output string");
}
String match = m.group(); return match.substring(match.lastIndexOf(" ") + 1, match.length());
}
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