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root/jsr166/jsr166/src/test/tck/JSR166TestCase.java
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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.265 by jsr166, Sat Sep 7 15:03:44 2019 UTC vs.
Revision 1.266 by jsr166, Sat Sep 7 17:40:05 2019 UTC

# Line 1083 | Line 1083 | public class JSR166TestCase extends Test
1083          }
1084      }
1085  
1086 +    /** Returns true if thread info might be useful in a thread dump. */
1087 +    static boolean threadOfInterest(ThreadInfo info) {
1088 +        final String name = info.getThreadName();
1089 +        String lockName;
1090 +        if (name == null)
1091 +            return true;
1092 +        if (name.equals("Signal Dispatcher")
1093 +            || name.equals("WedgedTestDetector"))
1094 +            return false;
1095 +        if (name.equals("Reference Handler")) {
1096 +            // Reference Handler stacktrace changed in JDK-8156500
1097 +            StackTraceElement[] stackTrace; String methodName;
1098 +            if ((stackTrace = info.getStackTrace()) != null
1099 +                && stackTrace.length > 0
1100 +                && (methodName = stackTrace[0].getMethodName()) != null
1101 +                && methodName.equals("waitForReferencePendingList"))
1102 +                return false;
1103 +            // jdk8 Reference Handler stacktrace
1104 +            if ((lockName = info.getLockName()) != null
1105 +                && lockName.startsWith("java.lang.ref"))
1106 +                return false;
1107 +        }
1108 +        if ((name.equals("Finalizer") || name.equals("Common-Cleaner"))
1109 +            && (lockName = info.getLockName()) != null
1110 +            && lockName.startsWith("java.lang.ref"))
1111 +            return false;
1112 +        if (name.startsWith("ForkJoinPool.commonPool-worker")
1113 +            && (lockName = info.getLockName()) != null
1114 +            && lockName.startsWith("java.util.concurrent.ForkJoinPool"))
1115 +            return false;
1116 +        return true;
1117 +    }
1118 +
1119      /**
1120       * A debugging tool to print stack traces of most threads, as jstack does.
1121       * Uninteresting threads are filtered out.
# Line 1099 | Line 1132 | public class JSR166TestCase extends Test
1132  
1133          ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
1134          System.err.println("------ stacktrace dump start ------");
1135 <        for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
1136 <            final String name = info.getThreadName();
1137 <            String lockName;
1105 <            if ("Signal Dispatcher".equals(name))
1106 <                continue;
1107 <            if ("Reference Handler".equals(name)
1108 <                && (lockName = info.getLockName()) != null
1109 <                && lockName.startsWith("java.lang.ref"))
1110 <                continue;
1111 <            if (("Finalizer".equals(name) || "Common-Cleaner".equals(name))
1112 <                && (lockName = info.getLockName()) != null
1113 <                && lockName.startsWith("java.lang.ref"))
1114 <                continue;
1115 <            if ("WedgedTestDetector".equals(name))
1116 <                continue;
1117 <            System.err.print(info);
1118 <        }
1135 >        for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true))
1136 >            if (threadOfInterest(info))
1137 >                System.err.print(info);
1138          System.err.println("------ stacktrace dump end ------");
1139  
1140          if (sm != null) System.setSecurityManager(sm);

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