Mercurial > hg > openjdk > bsd-port > hotspot
view test/gc/arguments/TestAggressiveHeap.java @ 6022:6dddeb2aaee3
8179084: HotSpot VM fails to start when AggressiveHeap is set
Reviewed-by: kbarrett, stefank
author | dholmes |
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date | Tue, 31 Oct 2017 05:50:42 +0000 |
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/* * Copyright (c) 2017, 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 TestAggressiveHeap * @key gc * @bug 8179084 * @summary Test argument processing for -XX:+AggressiveHeap. * @library /testlibrary * @run driver TestAggressiveHeap */ import java.lang.management.ManagementFactory; import javax.management.MBeanServer; import javax.management.ObjectName; import com.oracle.java.testlibrary.OutputAnalyzer; import com.oracle.java.testlibrary.ProcessTools; public class TestAggressiveHeap { public static void main(String args[]) throws Exception { if (canUseAggressiveHeapOption()) { testFlag(); } } // Note: Not a normal boolean flag; -XX:-AggressiveHeap is invalid. private static final String option = "-XX:+AggressiveHeap"; // Option requires at least 256M, else error during option processing. private static final long minMemory = 256 * 1024 * 1024; // bool UseParallelGC := true {product} private static final String parallelGCPattern = " *bool +UseParallelGC *:= *true +\\{product\\}"; private static void testFlag() throws Exception { ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( option, "-XX:+PrintFlagsFinal", "-version"); OutputAnalyzer output = new OutputAnalyzer(pb.start()); output.shouldHaveExitValue(0); String value = output.firstMatch(parallelGCPattern); if (value == null) { throw new RuntimeException( option + " didn't set UseParallelGC"); } } private static boolean haveRequiredMemory() throws Exception { MBeanServer server = ManagementFactory.getPlatformMBeanServer(); ObjectName os = new ObjectName("java.lang", "type", "OperatingSystem"); Object attr = server.getAttribute(os, "TotalPhysicalMemorySize"); String value = attr.toString(); long memory = Long.parseLong(value); return memory >= minMemory; } private static boolean canUseAggressiveHeapOption() throws Exception { if (!haveRequiredMemory()) { System.out.println( "Skipping test of " + option + " : insufficient memory"); return false; } return true; } }