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23 
24 /**
25  * @test
26  * @bug 8192985
27  * @summary Test the clhsdb 'scanoops' command
28  * @requires vm.gc.Parallel
29  * @requires vm.hasSA
30  * @library /test/lib
31  * @run main/othervm/timeout=1200 ClhsdbScanOops UseParallelGC
32  */
33 
34 /**
35  * @test
36  * @bug 8192985
37  * @summary Test the clhsdb 'scanoops' command
38  * @requires vm.gc.Serial
39  * @requires vm.hasSA
40  * @library /test/lib
41  * @run main/othervm/timeout=1200 ClhsdbScanOops UseSerialGC
42  */
43 
44 import java.util.HashMap;
45 import java.util.List;
46 import java.util.Map;
47 import java.util.ArrayList;
48 import jdk.test.lib.Utils;
49 import jdk.test.lib.apps.LingeredApp;
50 import jtreg.SkippedException;
51 
52 public class ClhsdbScanOops {
53 
testWithGcType(String gc)54     private static void testWithGcType(String gc) throws Exception {
55 
56         LingeredApp theApp = null;
57 
58         try {
59             ClhsdbLauncher test = new ClhsdbLauncher();
60             theApp = LingeredApp.startApp(gc);
61 
62             System.out.println ("Started LingeredApp with the GC option " + gc +
63                                 " and pid " + theApp.getPid());
64 
65             // Run the 'universe' command to get the address ranges
66             List<String> cmds = List.of("universe");
67 
68             String universeOutput = test.run(theApp.getPid(), cmds, null, null);
69 
70             cmds = new ArrayList<String>();
71             Map<String, List<String>> expStrMap = new HashMap<>();
72             Map<String, List<String>> unExpStrMap = new HashMap<>();
73 
74             String startAddress = null;
75             String endAddress = null;
76             String[] snippets = null;
77 
78             if (gc.contains("UseParallelGC")) {
79                 snippets = universeOutput.split("eden =  ");
80             } else {
81                 snippets = universeOutput.split("eden \\[");
82             }
83             String[] words = snippets[1].split(",");
84             // Get the addresses from Eden
85             startAddress = words[0].replace("[", "");
86             endAddress = words[1];
87             String cmd = "scanoops " + startAddress + " " + endAddress;
88             cmds.add(cmd);
89 
90             expStrMap.put(cmd, List.of
91                 ("java/lang/Object", "java/lang/Class", "java/lang/Thread",
92                  "java/lang/String", "\\[B", "\\[I"));
93 
94             // Test the 'type' option also
95             // scanoops <start addr> <end addr> java/lang/String
96             // Ensure that only the java/lang/String oops are printed.
97             cmd = cmd + " java/lang/String";
98             cmds.add(cmd);
99             expStrMap.put(cmd, List.of("java/lang/String"));
100             unExpStrMap.put(cmd, List.of("java/lang/Thread"));
101 
102             test.run(theApp.getPid(), cmds, expStrMap, unExpStrMap);
103         } catch (SkippedException e) {
104             throw e;
105         } catch (Exception ex) {
106             throw new RuntimeException("Test ERROR " + ex, ex);
107         } finally {
108             LingeredApp.stopApp(theApp);
109         }
110     }
111 
main(String[] args)112     public static void main(String[] args) throws Exception {
113         String gc = args[0];
114         System.out.println("Starting the ClhsdbScanOops test");
115         testWithGcType("-XX:+" + gc);
116         System.out.println("Test PASSED");
117     }
118 }
119