| /* |
| * Copyright (c) 2013, 2016, 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 |
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| */ |
| |
| /* |
| * @test |
| * @key nmt jcmd |
| * @summary Verify that jcmd correctly reports that NMT is not enabled |
| * @library /test/lib |
| * @modules java.base/jdk.internal.misc |
| * java.management |
| * @run main JcmdWithNMTDisabled 1 |
| */ |
| |
| import jdk.test.lib.process.ProcessTools; |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.JDKToolFinder; |
| |
| public class JcmdWithNMTDisabled { |
| static ProcessBuilder pb = new ProcessBuilder(); |
| static String pid; |
| |
| public static void main(String args[]) throws Exception { |
| |
| // This test explicitly needs to be run with the exact command lines below, not passing on |
| // arguments from the parent VM is a conscious choice to avoid NMT being turned on. |
| if (args.length > 0) { |
| ProcessBuilder pb; |
| OutputAnalyzer output; |
| String testjdkPath = System.getProperty("test.jdk"); |
| |
| // First run without enabling NMT |
| pb = ProcessTools.createJavaProcessBuilder("-Dtest.jdk=" + testjdkPath, "JcmdWithNMTDisabled"); |
| output = new OutputAnalyzer(pb.start()); |
| output.shouldHaveExitValue(0); |
| |
| // Then run with explicitly disabling NMT, should not be any difference |
| pb = ProcessTools.createJavaProcessBuilder("-Dtest.jdk=" + testjdkPath, "-XX:NativeMemoryTracking=off", "JcmdWithNMTDisabled"); |
| output = new OutputAnalyzer(pb.start()); |
| output.shouldHaveExitValue(0); |
| |
| return; |
| } |
| |
| // Grab my own PID |
| pid = Long.toString(ProcessTools.getProcessId()); |
| |
| jcmdCommand("summary"); |
| jcmdCommand("detail"); |
| jcmdCommand("baseline"); |
| jcmdCommand("summary.diff"); |
| jcmdCommand("detail.diff"); |
| jcmdCommand("scale=GB"); |
| jcmdCommand("shutdown"); |
| } |
| |
| // Helper method for invoking different jcmd calls, all should fail with the same message saying NMT is not enabled |
| public static void jcmdCommand(String command) throws Exception { |
| |
| pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", command}); |
| OutputAnalyzer output = new OutputAnalyzer(pb.start()); |
| |
| // Verify that jcmd reports that NMT is not enabled |
| output.shouldContain("Native memory tracking is not enabled"); |
| } |
| } |