88 lines
3.3 KiB
Java
88 lines
3.3 KiB
Java
/*
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* Copyright (c) 2013, 2023, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @summary Verify that jcmd correctly reports that NMT is not enabled
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* @requires vm.flagless
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* @library /test/lib
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* @modules java.base/jdk.internal.misc
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* java.management
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* @run driver JcmdWithNMTDisabled 1
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*/
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import jdk.test.lib.Platform;
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import jdk.test.lib.process.ProcessTools;
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import jdk.test.lib.process.OutputAnalyzer;
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import jdk.test.lib.JDKToolFinder;
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public class JcmdWithNMTDisabled {
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static ProcessBuilder pb = new ProcessBuilder();
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static String pid;
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public static void main(String args[]) throws Exception {
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// This test explicitly needs to be run with the exact command lines below, not passing on
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// arguments from the parent VM is a conscious choice to avoid NMT being turned on.
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if (args.length > 0) {
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ProcessBuilder pb;
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OutputAnalyzer output;
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String testjdkPath = System.getProperty("test.jdk");
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// First run without enabling NMT (not in debug, where NMT is by default on)
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if (!Platform.isDebugBuild()) {
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pb = ProcessTools.createLimitedTestJavaProcessBuilder("-Dtest.jdk=" + testjdkPath, "JcmdWithNMTDisabled");
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output = new OutputAnalyzer(pb.start());
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output.shouldHaveExitValue(0);
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}
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// Then run with explicitly disabling NMT, should not be any difference
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pb = ProcessTools.createLimitedTestJavaProcessBuilder("-Dtest.jdk=" + testjdkPath, "-XX:NativeMemoryTracking=off", "JcmdWithNMTDisabled");
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output = new OutputAnalyzer(pb.start());
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output.shouldHaveExitValue(0);
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return;
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}
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// Grab my own PID
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pid = Long.toString(ProcessTools.getProcessId());
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jcmdCommand("summary");
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jcmdCommand("detail");
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jcmdCommand("baseline");
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jcmdCommand("summary.diff");
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jcmdCommand("detail.diff");
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jcmdCommand("scale=GB");
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}
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// Helper method for invoking different jcmd calls, all should fail with the same message saying NMT is not enabled
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public static void jcmdCommand(String command) throws Exception {
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pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", command});
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OutputAnalyzer output = new OutputAnalyzer(pb.start());
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// Verify that jcmd reports that NMT is not enabled
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output.shouldContain("Native memory tracking is not enabled");
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}
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}
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