1 /*

     2 * Copyright (c) 2014, 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 import com.oracle.java.testlibrary.JDKToolFinder;

    25 import com.oracle.java.testlibrary.OutputAnalyzer;

    26 import com.oracle.java.testlibrary.ProcessTools;

    27 import com.oracle.java.testlibrary.Platform;

    28 

    29 /*

    30  * @test TestCardTablePageCommits

    31  * @key gc

    32  * @bug 8059066

    33  * @summary Tests that the card table does not commit the same page twice

    34  * @library /testlibrary

    35  * @run driver TestCardTablePageCommits

    36  */

    37 public class TestCardTablePageCommits {

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

    39         // The test is run with a small heap to make sure all pages in the card

    40         // table gets committed. Need 8 MB heap to trigger the bug on SPARC

    41         // because of 8kB pages, assume 4 KB pages for all other CPUs.

    42         String Xmx = Platform.isSparc() ? "-Xmx8m" : "-Xmx4m";

    43 

    44         String[] opts = {Xmx, "-XX:NativeMemoryTracking=detail", "-XX:+UseParallelGC", "-version"};

    45         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(opts);

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

    47         output.shouldHaveExitValue(0);

    48     }

    49 }