1 /*
   2  * Copyright (c) 2019, Red Hat, Inc. All rights reserved.
   3  *
   4  * This code is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.
   7  *
   8  * This code is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  11  * version 2 for more details (a copy is included in the LICENSE file that
  12  * accompanied this code).
  13  *
  14  * You should have received a copy of the GNU General Public License version
  15  * 2 along with this work; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  19  * or visit www.oracle.com if you need additional information or have any
  20  * questions.
  21  *
  22  */
  23 
  24 /*
  25  * @test TestObjIterWithHeapDump
  26  * @summary Test heap dump triggered heap object iteration
  27  * @key gc
  28  * @bug 8225014
  29  * @library /testlibrary
  30  * @run main/othervm TestObjItrWithHeapDump
  31  */
  32 
  33 import java.util.*;
  34 import com.oracle.java.testlibrary.*;
  35 
  36 public class TestObjItrWithHeapDump {
  37     public static void testWith(String... args) throws Exception {
  38         String[] cmds = Arrays.copyOf(args, args.length + 2);
  39         cmds[args.length] = TestObjItrWithHeapDump.class.getName();
  40         cmds[args.length + 1] = "test";
  41         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmds);
  42 
  43         OutputAnalyzer output = new OutputAnalyzer(pb.start());
  44         output.shouldHaveExitValue(0);
  45         output.shouldContain("Class Histogram (before full gc)");
  46         output.shouldContain("Class Histogram (after full gc)");
  47     }
  48 
  49     public static void main(String[] args) throws Exception {
  50         if (args.length > 0 && args[0].equals("test")) {
  51             System.gc();
  52             System.exit(0);
  53         }
  54 
  55         String[][][] modeHeuristics = new String[][][]{
  56             {{"satb"},    {"adaptive", "compact", "static", "aggressive"}},
  57             {{"iu"},      {"adaptive", "aggressive"}},
  58             {{"passive"}, {"passive"}}
  59         };
  60 
  61         for (String[][] mh : modeHeuristics) {
  62             String mode = mh[0][0];
  63             String[] heuristics = mh[1];
  64             for (String h : heuristics) {
  65                 testWith("-XX:+UnlockDiagnosticVMOptions",
  66                     "-XX:+UnlockExperimentalVMOptions",
  67                     "-XX:+UseShenandoahGC",
  68                     "-XX:-ShenandoahDegeneratedGC",
  69                     "-XX:ShenandoahGCMode=" + mode,
  70                     "-XX:ShenandoahGCHeuristics=" + h,
  71                     "-XX:+PrintClassHistogramBeforeFullGC",
  72                     "-XX:+PrintClassHistogramAfterFullGC",
  73                     "-XX:+PrintGCDetails",
  74                     "-XX:-ExplicitGCInvokesConcurrent",
  75                     "-Xmx512M"
  76                 );
  77             }
  78         }
  79     }
  80 }