1 /*

     2  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 /*

    25  * @test

    26  * @key nmt jcmd

    27  * @summary Verify that jcmd correctly reports that NMT is not enabled after a shutdown

    28  * @library /testlibrary

    29  * @run main/othervm -XX:NativeMemoryTracking=detail SummaryAfterShutdown

    30  */

    31 

    32 import com.oracle.java.testlibrary.*;

    33 

    34 public class SummaryAfterShutdown {

    35 

    36   public static void main(String args[]) throws Exception {

    37     OutputAnalyzer output;

    38     // Grab my own PID

    39     String pid = Integer.toString(ProcessTools.getProcessId());

    40     ProcessBuilder pb = new ProcessBuilder();

    41 

    42     // Run 'jcmd <pid> VM.native_memory shutdown'

    43     pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "shutdown"});

    44     output = new OutputAnalyzer(pb.start());

    45 

    46     // Verify that jcmd reports that NMT is shutting down

    47     output.shouldContain("Shutdown is in progress, it will take a few moments to completely shutdown");

    48 

    49     // Run 'jcmd <pid> VM.native_memory summary'

    50     pb.command(new String[] { JDKToolFinder.getJDKTool("jcmd"), pid, "VM.native_memory", "summary"});

    51     output = new OutputAnalyzer(pb.start());

    52 

    53     // Verify that jcmd reports that NMT has been shutdown

    54     output.shouldContain("Native memory tracking has been shutdown by user");

    55   }

    56 }