Package java.lang.management

Examples of java.lang.management.ThreadInfo

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    boolean contention = threadBean.isThreadContentionMonitoringEnabled();
    long[] threadIds = threadBean.getAllThreadIds();
    stream.println("Process Thread Dump: Tajo Worker");
    stream.println(threadIds.length + " active threads");
    for (long tid : threadIds) {
      ThreadInfo info = threadBean.getThreadInfo(tid, STACK_DEPTH);
      if (info == null) {
        stream.println("  Inactive");
        continue;
      }
      stream.println("Thread " + getThreadTaskName(info.getThreadId(), info.getThreadName()) + ":");
      Thread.State state = info.getThreadState();
      stream.println("  State: " + state + ",  Blocked count: " + info.getBlockedCount() +
          ",  Waited count: " + info.getWaitedCount());
      if (contention) {
        stream.println("  Blocked time: " + info.getBlockedTime() + ",  Waited time: " + info.getWaitedTime());
      }
      if (state == Thread.State.WAITING) {
        stream.println("  Waiting on " + info.getLockName());
      } else if (state == Thread.State.BLOCKED) {
        stream.println("  Blocked on " + info.getLockName() +
            ", Blocked by " + getThreadTaskName(info.getLockOwnerId(), info.getLockOwnerName()));
      }
      stream.println("  Stack:");
      for (StackTraceElement frame : info.getStackTrace()) {
        stream.println("    " + frame.toString());
      }
      stream.println("");
    }
  }
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    boolean contention = threadBean.isThreadContentionMonitoringEnabled();
    long[] threadIds = threadBean.getAllThreadIds();
    stream.println("Process Thread Dump: " + title);
    stream.println(threadIds.length + " active threads");
    for (long tid : threadIds) {
      ThreadInfo info = threadBean.getThreadInfo(tid, STACK_DEPTH);
      if (info == null) {
        stream.println("  Inactive");
        continue;
      }
      stream.println("Thread " + getTaskName(info.getThreadId(), info.getThreadName()) + ":");
      Thread.State state = info.getThreadState();
      stream.println("  State: " + state);
      stream.println("  Blocked count: " + info.getBlockedCount());
      stream.println("  Waited count: " + info.getWaitedCount());
      if (contention) {
        stream.println("  Blocked time: " + info.getBlockedTime());
        stream.println("  Waited time: " + info.getWaitedTime());
      }
      if (state == Thread.State.WAITING) {
        stream.println("  Waiting on " + info.getLockName());
      } else if (state == Thread.State.BLOCKED) {
        stream.println("  Blocked on " + info.getLockName());
        stream.println("  Blocked by " + getTaskName(info.getLockOwnerId(), info.getLockOwnerName()));
      }
      stream.println("  Stack:");
      for (StackTraceElement frame : info.getStackTrace()) {
        stream.println("    " + frame.toString());
      }
    }
    stream.flush();
  }
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        StringBuilder sb=new StringBuilder();
        ThreadMXBean bean=ManagementFactory.getThreadMXBean();
        long[] ids=bean.getAllThreadIds();
        ThreadInfo[] threads=bean.getThreadInfo(ids, 20);
        for(int i=0; i < threads.length; i++) {
            ThreadInfo info=threads[i];
            if(info == null)
                continue;
            sb.append(info.getThreadName()).append(":\n");
            StackTraceElement[] stack_trace=info.getStackTrace();
            for(int j=0; j < stack_trace.length; j++) {
                StackTraceElement el=stack_trace[j];
                sb.append("at ").append(el.getClassName()).append(".").append(el.getMethodName());
                sb.append("(").append(el.getFileName()).append(":").append(el.getLineNumber()).append(")");
                sb.append("\n");
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        for (ThreadInfo info : infos) {
            threadInfos.put(info.getThreadId(), info);
        }

        if (id != null) {
            ThreadInfo ti = threadInfos.get(id);
            if (ti != null) {
                System.out.println("Thread " + ti.getThreadId() + " " + ti.getThreadName() + " " + ti.getThreadState());
                System.out.println("Stacktrace:");
                StackTraceElement[] st = ti.getStackTrace();
                for (StackTraceElement ste : st) {
                    System.out.println(ste.getClassName() + "." + ste.getMethodName() + " line: " + ste.getLineNumber());
                }
            }
        } else if (list) {
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        for (ThreadInfo info : infos) {
            threadInfos.put(info.getThreadId(), info);
        }

        if (id != null) {
            ThreadInfo ti = threadInfos.get(id);
            if (ti != null) {
                System.out.println("Thread " + ti.getThreadId() + " " + ti.getThreadName() + " " + ti.getThreadState());
                System.out.println("Stacktrace:");
                StackTraceElement[] st = ti.getStackTrace();
                for (StackTraceElement ste : st) {
                    System.out.println(ste.getClassName() + "." + ste.getMethodName() + " line: " + ste.getLineNumber());
                }
            }
        } else if (list) {
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        dump.append(dumpPrefix);
        dump.append("\n");
        long[] tids = tmbean.getAllThreadIds();
        ThreadInfo[] tinfos = tmbean.getThreadInfo(tids, Integer.MAX_VALUE);
        for (int i = 0; i < tinfos.length; i++) {
            ThreadInfo ti = tinfos[i];
            printThreadInfo(ti, dump);
        }
        dump.append(DUMP_END);
    }
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        }
        dump.append("\n\nFound one Java-level deadlock:\n");
        dump.append("==============================\n");
        ThreadInfo[] infos = tmbean.getThreadInfo(tids, Integer.MAX_VALUE);
        for (int i = 1; i < infos.length; i++) {
            ThreadInfo ti = infos[i];
            // print thread information
            printThreadInfo(ti, dump);
        }

        return (dump.toString());
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      MetaValue tid0InfoMV = getThreadInfo.invoke(tid0SV);
      assertNotNull(tid0InfoMV);
      assertTrue(tid0InfoMV instanceof CompositeValue);
      log.debug(tid0InfoMV);
      CompositeValue tid0InfoCV = (CompositeValue) tid0InfoMV;
      ThreadInfo tid0Info = ManagementFactoryUtils.unwrapThreadInfo(tid0InfoCV);
      log.debug(tid0Info);
   }
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    private Deadlock[] createDeadlockDescriptions(Set<LinkedHashSet<ThreadInfo>> cycles) {
        Deadlock result[] = new Deadlock[cycles.size()];
        int count = 0;
        for (LinkedHashSet<ThreadInfo> cycle : cycles) {
            ThreadInfo asArray[] = cycle.toArray(new ThreadInfo[cycle.size()]);
            Deadlock d = new Deadlock(asArray);
            result[count++] = d;
        }
        return result;
    }
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        return cycles;
    }


    private Set<LinkedHashSet<ThreadInfo>> calculateCycleDeadlockChains(ImmutableMap<Long, ThreadInfo> threadInfoMap, Set<LinkedHashSet<ThreadInfo>> cycles) {
        ThreadInfo allThreads[] = threadBean.getThreadInfo(threadBean.getAllThreadIds());
        Set<LinkedHashSet<ThreadInfo>> deadlockChain = new HashSet<LinkedHashSet<ThreadInfo>>();
        Set<Long> knownDeadlockedThreads = threadInfoMap.keySet();
        for (ThreadInfo threadInfo : allThreads) {
            Thread.State state = threadInfo.getThreadState();
            if (state == Thread.State.BLOCKED && !knownDeadlockedThreads.contains(threadInfo.getThreadId())) {
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