Package java.lang.management

Examples of java.lang.management.ThreadMXBean

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    boolean noFormat;

    @Override
    protected Object doExecute() throws Exception {
        Map<Long, ThreadInfo> threadInfos = new TreeMap<Long, ThreadInfo>();
        ThreadMXBean threadsBean = ManagementFactory.getThreadMXBean();
        ThreadInfo[] infos;
        if (threadsBean.isObjectMonitorUsageSupported() && threadsBean.isSynchronizerUsageSupported()) {
            infos = threadsBean.dumpAllThreads(true, true);
        } else {
            infos = threadsBean.getThreadInfo(threadsBean.getAllThreadIds(), Integer.MAX_VALUE);
        }
        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) {
            ShellTable table = new ShellTable();
            table.column("Id");
            table.column("Name");
            table.column("State");
            table.column("CPU time");
            table.column("Usr time");
            for (ThreadInfo thread : threadInfos.values()) {
                long id = thread.getThreadId();
                table.addRow().addContent(
                        id,
                        thread.getThreadName(),
                        thread.getThreadState(),
                        threadsBean.getThreadCpuTime(id) / 1000000,
                        threadsBean.getThreadUserTime(id) / 1000000);
            }
            table.print(System.out, !noFormat);
        } else {
            ThreadGroup group = Thread.currentThread().getThreadGroup();
            while (group.getParent() != null) {
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    protected Object doExecute() throws Exception {
        int maxNameLen;

        RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
        OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();
        ThreadMXBean threads = ManagementFactory.getThreadMXBean();
        MemoryMXBean mem = ManagementFactory.getMemoryMXBean();
        ClassLoadingMXBean cl = ManagementFactory.getClassLoadingMXBean();

        //
        // print Karaf informations
        //
        maxNameLen = 25;
        System.out.println("Karaf");
        printValue("Karaf version", maxNameLen, System.getProperty("karaf.version"));
        printValue("Karaf home", maxNameLen, System.getProperty("karaf.home"));
        printValue("Karaf base", maxNameLen, System.getProperty("karaf.base"));
        printValue("Karaf etc", maxNameLen, System.getProperty("karaf.etc"));
        printValue("OSGi Framework", maxNameLen, bundleContext.getBundle(0).getSymbolicName() + " - " +
                bundleContext.getBundle(0).getVersion());
        System.out.println();

        System.out.println("JVM");
        printValue("Java Virtual Machine", maxNameLen, runtime.getVmName() + " version " + runtime.getVmVersion());
        printValue("Version", maxNameLen, System.getProperty("java.version"));
        printValue("Vendor", maxNameLen, runtime.getVmVendor());
        printValue("Pid", maxNameLen, getPid());
        printValue("Uptime", maxNameLen, printDuration(runtime.getUptime()));
        try {
            printValue("Process CPU time", maxNameLen, printDuration(getSunOsValueAsLong(os, "getProcessCpuTime") / 1000000));
        } catch (Throwable t) {
        }
        printValue("Total compile time", maxNameLen, printDuration(ManagementFactory.getCompilationMXBean().getTotalCompilationTime()));

        System.out.println("Threads");
        printValue("Live threads", maxNameLen, Integer.toString(threads.getThreadCount()));
        printValue("Daemon threads", maxNameLen, Integer.toString(threads.getDaemonThreadCount()));
        printValue("Peak", maxNameLen, Integer.toString(threads.getPeakThreadCount()));
        printValue("Total started", maxNameLen, Long.toString(threads.getTotalStartedThreadCount()));

        System.out.println("Memory");
        printValue("Current heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getUsed()));
        printValue("Maximum heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getMax()));
        printValue("Committed heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getCommitted()));
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            outPW.printf(INDENT_KEY_VALUE_FORMAT, "total compile time", printDuration(compilationMXBean.getTotalCompilationTime())).println();
        }
    }

    private void dumpThreadsInformation(final PrintWriter outPW) {
        final ThreadMXBean mxBean = ManagementFactory.getThreadMXBean();
        if( null == mxBean) {
            return;
        }
        outPW.println("Threads:");
        outPW.printf(INDENT_KEY_VALUE_FORMAT, "live", formatLong(mxBean.getThreadCount())).println();
        outPW.printf(INDENT_KEY_VALUE_FORMAT, "daemon", formatLong(mxBean.getDaemonThreadCount())).println();
        outPW.printf(INDENT_KEY_VALUE_FORMAT, "peak", formatLong(mxBean.getPeakThreadCount())).println();
        outPW.printf(INDENT_KEY_VALUE_FORMAT, "total", formatLong(mxBean.getTotalStartedThreadCount())).println();
    }
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        super("threads.txt");
    }

    @Override
    protected void writeDump(OutputStreamWriter outputStream) throws Exception {
        ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();

        outputStream.write("Number of threads: " + threadMXBean.getThreadCount() + "\n");

        for (ThreadInfo threadInfo : threadMXBean.getThreadInfo(threadMXBean.getAllThreadIds(), Integer.MAX_VALUE)) {
            outputStream.write(getDumpThreadString(threadInfo) + "\n\n");
        }

    }
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  /**
   * Count the number of threads that have a stack frame containing
   * the given string
   */
  private static int countThreads(String search) {
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();

    int count = 0;
    ThreadInfo[] infos = threadBean.getThreadInfo(threadBean.getAllThreadIds(), 20);
    for (ThreadInfo info : infos) {
      if (info == null) continue;
      for (StackTraceElement elem : info.getStackTrace()) {
        if (elem.getClassName().contains(search)) {
          count++;
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    private Long id;

    @Override
    protected Object doExecute() throws Exception {
        Map<Long, ThreadInfo> threadInfos = new TreeMap<Long, ThreadInfo>();
        ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
        ThreadInfo[] infos;
        if (threadMXBean.isObjectMonitorUsageSupported() && threadMXBean.isSynchronizerUsageSupported()) {
            infos = threadMXBean.dumpAllThreads(true, true);
        } else {
            infos = threadMXBean.getThreadInfo(threadMXBean.getAllThreadIds(), Integer.MAX_VALUE);
        }
        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) {
            System.out.println("   ID   State           CPU time   Usr Time  Name");
            for (ThreadInfo thread : threadInfos.values()) {
                String id = String.valueOf(thread.getThreadId());
                while (id.length() < 4) {
                    id = " " + id;
                }
                String state = thread.getThreadState().toString();
                while (state.length() < 13) {
                    state = state + " ";
                }
                String cpu = String.valueOf(threadMXBean.getThreadCpuTime(thread.getThreadId()) / 1000000);
                while (cpu.length() < 8) {
                    cpu = " " + cpu;
                }
                String user = String.valueOf(threadMXBean.getThreadUserTime(thread.getThreadId()) / 1000000);
                while (user.length() < 8) {
                    user = " " + user;
                }
                System.out.println("[" + id + "] [" + state + "] [" + cpu + "] [" + user + "] " + thread.getThreadName());
            }
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            outPW.printf(INDENT_KEY_VALUE_FORMAT, "total compile time", printDuration(compilationMXBean.getTotalCompilationTime())).println();
        }
    }

    private void dumpThreadsInformation(final PrintWriter outPW) {
        final ThreadMXBean mxBean = ManagementFactory.getThreadMXBean();
        if( null == mxBean) {
            return;
        }
        outPW.println("Threads:");
        outPW.printf(INDENT_KEY_VALUE_FORMAT, "live", formatLong(mxBean.getThreadCount())).println();
        outPW.printf(INDENT_KEY_VALUE_FORMAT, "daemon", formatLong(mxBean.getDaemonThreadCount())).println();
        outPW.printf(INDENT_KEY_VALUE_FORMAT, "peak", formatLong(mxBean.getPeakThreadCount())).println();
        outPW.printf(INDENT_KEY_VALUE_FORMAT, "total", formatLong(mxBean.getTotalStartedThreadCount())).println();
    }
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        super("threads.txt");
    }

    @Override
    protected void writeDump(OutputStreamWriter outputStream) throws Exception {
        ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();

        outputStream.write("Number of threads: " + threadMXBean.getThreadCount() + "\n");

        for (ThreadInfo threadInfo : threadMXBean.getThreadInfo(threadMXBean.getAllThreadIds(), Integer.MAX_VALUE)) {
            outputStream.write(getDumpThreadString(threadInfo) + "\n\n");
        }

    }
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    protected Object doExecute() throws Exception {
        int maxNameLen;

        RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
        OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();
        ThreadMXBean threads = ManagementFactory.getThreadMXBean();
        MemoryMXBean mem = ManagementFactory.getMemoryMXBean();
        ClassLoadingMXBean cl = ManagementFactory.getClassLoadingMXBean();

        //
        // print Karaf informations
        //
        maxNameLen = 25;
        System.out.println("Karaf");
        printValue("Karaf version", maxNameLen, System.getProperty("karaf.version"));
        printValue("Karaf home", maxNameLen, System.getProperty("karaf.home"));
        printValue("Karaf base", maxNameLen, System.getProperty("karaf.base"));
        printValue("OSGi Framework", maxNameLen, bundleContext.getBundle(0).getSymbolicName() + " - " +
                bundleContext.getBundle(0).getVersion());
        System.out.println();

        System.out.println("JVM");
        printValue("Java Virtual Machine", maxNameLen, runtime.getVmName() + " version " + runtime.getVmVersion());
        printValue("Version", maxNameLen, System.getProperty("java.version"));
        printValue("Vendor", maxNameLen, runtime.getVmVendor());
        printValue("Uptime", maxNameLen, printDuration(runtime.getUptime()));
        try {
            printValue("Process CPU time", maxNameLen, printDuration(getSunOsValueAsLong(os, "getProcessCpuTime") / 1000000));
        } catch (Throwable t) {
        }
        printValue("Total compile time", maxNameLen, printDuration(ManagementFactory.getCompilationMXBean().getTotalCompilationTime()));

        System.out.println("Threads");
        printValue("Live threads", maxNameLen, Integer.toString(threads.getThreadCount()));
        printValue("Daemon threads", maxNameLen, Integer.toString(threads.getDaemonThreadCount()));
        printValue("Peak", maxNameLen, Integer.toString(threads.getPeakThreadCount()));
        printValue("Total started", maxNameLen, Long.toString(threads.getTotalStartedThreadCount()));

        System.out.println("Memory");
        printValue("Current heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getUsed()));
        printValue("Maximum heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getMax()));
        printValue("Committed heap size", maxNameLen, printSizeInKb(mem.getHeapMemoryUsage().getCommitted()));
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    @Option(name = "-d", aliases = { "--dir" }, description = "Write thread dump to a file in the specified directory")
    String dir = null;
   
    protected Object doExecute() throws Exception {

        ThreadMXBean mxbean = ManagementFactory.getThreadMXBean();
        ThreadInfo[] threads = mxbean.dumpAllThreads(true, true);
       
        String timestamp = df.format(new Date());
       
        File dumpFile = null;
        PrintWriter writer = null;
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