| /* |
| * 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 |
| * @requires vm.gc.Parallel |
| * @summary Test argument processing for -XX:+AggressiveHeap. |
| * @library /test/lib |
| * @modules java.base java.management |
| * @run driver TestAggressiveHeap |
| */ |
| |
| import java.lang.management.ManagementFactory; |
| import javax.management.MBeanServer; |
| import javax.management.ObjectName; |
| |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.process.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} {command line} |
| private static final String parallelGCPattern = |
| " *bool +UseParallelGC *= *true +\\{product\\} *\\{command line\\}"; |
| |
| 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 as if from command line"); |
| } |
| } |
| |
| 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; |
| } |
| } |
| |