7977
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1 /*
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23
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24 /*
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25 * @test
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26 * @key nmt jcmd
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27 * @summary Verify that jcmd correctly reports that NMT is not enabled
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28 * @library /testlibrary
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29 * First run without enabling NMT
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30 * @run main/othervm JcmdWithNMTDisabled
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31 * Then run with explicitly disabling NMT, should not be any difference
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32 * @run main/othervm -XX:NativeMemoryTracking=off JcmdWithNMTDisabled
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33 */
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34
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35 import com.oracle.java.testlibrary.*;
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36
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37 public class JcmdWithNMTDisabled {
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38 static ProcessBuilder pb = new ProcessBuilder();
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39 static String pid;
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40
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41 public static void main(String args[]) throws Exception {
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42 // Grab my own PID
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43 pid = Integer.toString(ProcessTools.getProcessId());
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44
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45 jcmdCommand("summary");
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46 jcmdCommand("detail");
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47 jcmdCommand("baseline");
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48 jcmdCommand("summary.diff");
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49 jcmdCommand("detail.diff");
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50 jcmdCommand("scale=GB");
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51 jcmdCommand("shutdown");
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52 }
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53
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54 // Helper method for invoking different jcmd calls, all should fail with the same message saying NMT is not enabled
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55 public static void jcmdCommand(String command) throws Exception {
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56
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57 pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", command});
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58 OutputAnalyzer output = new OutputAnalyzer(pb.start());
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59
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60 // Verify that jcmd reports that NMT is not enabled
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61 output.shouldContain("Native memory tracking is not enabled");
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62 }
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63 }
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