| /* |
| * Copyright (c) 2021, 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 |
| * @bug 8260349 |
| * @summary test that setting via the env-var and options file shows up as expected |
| * @library /test/lib |
| * @run driver MaxMetaspaceSizeEnvVarTest |
| */ |
| |
| import java.io.PrintWriter; |
| import java.lang.management.ManagementFactory; |
| import java.lang.management.MemoryPoolMXBean; |
| |
| import jdk.test.lib.process.ProcessTools; |
| import jdk.test.lib.process.OutputAnalyzer; |
| |
| public class MaxMetaspaceSizeEnvVarTest { |
| |
| // This is the test class we exec, passing the MaxMetaspaceSize flag |
| // by different mechanisms. |
| static class Main { |
| public static void main(String[] args) throws Exception { |
| long expected = Long.parseLong(args[0]); |
| MemoryPoolMXBean metaspaceMemoryPool = |
| ManagementFactory.getPlatformMXBeans(MemoryPoolMXBean.class) |
| .stream() |
| .filter(pool -> "Metaspace".equals(pool.getName())) |
| .findFirst() |
| .orElseThrow(); |
| long max = metaspaceMemoryPool.getUsage().getMax(); |
| System.out.println("Metaspace max usage is " + max); |
| if (max != expected) { |
| throw new RuntimeException("Metaspace max " + max + |
| " != " + expected); |
| } |
| } |
| } |
| |
| static void report(String msg) { |
| System.out.println(msg); |
| System.err.println(msg); |
| } |
| |
| public static void main(String... args) throws Exception { |
| final String max = String.valueOf(9 * 1024 * 1024); // 9 MB |
| final String flagRaw = "MaxMetaspaceSize=" + max; |
| final String flag = "-XX:" + flagRaw; |
| final String main = "MaxMetaspaceSizeEnvVarTest$Main"; |
| |
| ProcessBuilder pb = null; |
| OutputAnalyzer output = null; |
| |
| int test = 1; |
| report("Test " + test + ": flag not set"); |
| |
| Main.main(new String[] { "-1" }); // -1 == undefined size |
| report("------ end Test " + test); |
| test++; |
| |
| report("Test " + test + ": normal command-line flag"); |
| pb = ProcessTools.createJavaProcessBuilder(flag, main, max); |
| output = new OutputAnalyzer(pb.start()); |
| output.shouldHaveExitValue(0); |
| output.reportDiagnosticSummary(); |
| report("------ end Test " + test); |
| test++; |
| |
| String[] envVars = { |
| "JDK_JAVA_OPTIONS", |
| "_JAVA_OPTIONS", |
| "JAVA_TOOL_OPTIONS" |
| }; |
| |
| for (String envVar : envVars) { |
| report("Test " + test + ": " + envVar + " env-var"); |
| pb = ProcessTools.createJavaProcessBuilder(main, max); |
| pb.environment().put(envVar, flag); |
| output = new OutputAnalyzer(pb.start()); |
| output.shouldHaveExitValue(0); |
| output.reportDiagnosticSummary(); |
| report("------ end Test " + test); |
| test++; |
| } |
| |
| report("Test " + test + ": .hotspotrc file"); |
| final String rcFile = ".hotspotrc"; |
| final String rcFileFlag = "-XX:Flags=" + rcFile; |
| |
| PrintWriter pw = new PrintWriter(rcFile); |
| pw.println(flagRaw); |
| pw.close(); |
| pb = ProcessTools.createJavaProcessBuilder(rcFileFlag, main, max); |
| output = new OutputAnalyzer(pb.start()); |
| output.shouldHaveExitValue(0); |
| output.reportDiagnosticSummary(); |
| report("------ end Test " + test); |
| } |
| } |