/*

 * Copyright (c) 2013, 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.

 *

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 */

/*

 * @test

 * @key nmt regression

 * @bug 8005936

 * @summary Make sure PrintNMTStatistics works on normal JVM exit

 * @library /testlibrary

 * @run compile -J-XX:+UnlockDiagnosticVMOptions -J-XX:+WhiteBoxAPI PrintNMTStatistics.java

 */

import com.oracle.java.testlibrary.*;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

import sun.hotspot.WhiteBox;

public class PrintNMTStatistics {

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

    // We start a new java process running with an argument and use WB API to ensure

    // we have data for NMT on VM exit

    if (args.length > 0) {

      // Use WB API to ensure that all data has been merged before we continue

      if (!WhiteBox.getWhiteBox().NMTWaitForDataMerge()) {

        throw new Exception("Call to WB API NMTWaitForDataMerge() failed");

      }

      return;

    }

    ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

        "-XX:+UnlockDiagnosticVMOptions",

        "-XX:NativeMemoryTracking=summary",

        "+XX:+PrintNMTStatistics",

        "PrintNMTStatistics",

        "test");

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

    output.shouldContain("Java Heap  (reserved=");

    output.shouldNotContain("error");

    output.shouldNotContain("warning");

    output.shouldHaveExitValue(0);

  }

}