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

 *

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 * 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).

 *

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

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 */

/*

 * @test TestPrintReferences

 * @bug 8136991

 * @summary Validate the reference processing logging

 * @key gc

 * @library /testlibrary

 *          java.management

 */

import jdk.test.lib.ProcessTools;

import jdk.test.lib.OutputAnalyzer;

public class TestPrintReferences {

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

    ProcessBuilder pb_enabled =

      ProcessTools.createJavaProcessBuilder("-Xlog:gc+ref=debug", "-Xmx10M", GCTest.class.getName());

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

    String countRegex = "[0-9]+ refs";

    String timeRegex = "\\([0-9]+[.,][0-9]+s, [0-9]+[.,][0-9]+s\\) [0-9]+[.,][0-9]+ms";

    output.shouldMatch(".* GC\\([0-9]+\\) SoftReference " + timeRegex + "\n" +

                       ".* GC\\([0-9]+\\) WeakReference " + timeRegex + "\n" +

                       ".* GC\\([0-9]+\\) FinalReference " + timeRegex + "\n" +

                       ".* GC\\([0-9]+\\) PhantomReference " + timeRegex + "\n" +

                       ".* GC\\([0-9]+\\) JNI Weak Reference " + timeRegex + "\n" +

                       ".* GC\\([0-9]+\\) Ref Counts: Soft: [0-9]+ Weak: [0-9]+ Final: [0-9]+ Phantom: [0-9]+\n");

    output.shouldHaveExitValue(0);

  }

  static class GCTest {

    public static void main(String [] args) {

      System.gc();

    }

  }

}