Examples with RuntimeMXBean java.lang.management.RuntimeMXBean used on opensource projects

Example 86 with RuntimeMXBean

use of java.lang.management.RuntimeMXBean in project syncany by syncany.

the class PidFileUtil method getProcessPidImpl2.

/**
 * Uses the private method <tt>VMManagement.getProcessId()</tt> of Sun's <tt>sun.management.VMManagement</tt>
 * class to determine the PID (using reflection to make the relevant fields visible).
 *
 * @see http://stackoverflow.com/a/12066696/1440785
 */
private static int getProcessPidImpl2() throws Exception {
    RuntimeMXBean runtimeMXBean = ManagementFactory.getRuntimeMXBean();
    Field jvmField = runtimeMXBean.getClass().getDeclaredField("jvm");
    jvmField.setAccessible(true);
    // The returned object is of the type 'sun.management.VMManagement', but since we
    // don't need the exact type here and we don't want to reference it in the
    // imports, we'll just hope it's there.
    Object vmManagement = jvmField.get(runtimeMXBean);
    Method getProcessIdMethod = vmManagement.getClass().getDeclaredMethod("getProcessId");
    getProcessIdMethod.setAccessible(true);
    int processPid = (Integer) getProcessIdMethod.invoke(vmManagement);
    logger.log(Level.INFO, "Java Process PID is " + processPid);
    return processPid;
}

Example 87 with RuntimeMXBean

use of java.lang.management.RuntimeMXBean in project jPOS by jpos.

the class SystemMonitor method generateFrozenDump.

private String generateFrozenDump(String indent) {
    RuntimeMXBean runtimeMXBean = ManagementFactory.getRuntimeMXBean();
    ThreadMXBean mxBean = ManagementFactory.getThreadMXBean();
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    PrintStream p = new PrintStream(baos);
    String newIndent = indent + "  ";
    Runtime r = getRuntimeInstance();
    ZoneId zi = ZoneId.systemDefault();
    Instant instant = Instant.now();
    File cwd = new File(".");
    String freeSpace = ISOUtil.readableFileSize(cwd.getFreeSpace());
    String usableSpace = ISOUtil.readableFileSize(cwd.getUsableSpace());
    p.printf("%s           OS: %s (%s)%n", indent, System.getProperty("os.name"), System.getProperty("os.version"));
    int maxKeyLength = 0;
    try {
        maxKeyLength = Cipher.getMaxAllowedKeyLength("AES");
    } catch (NoSuchAlgorithmException ignored) {
    }
    p.printf("%s         Java: %s (%s) AES-%s%n", indent, System.getProperty("java.version"), System.getProperty("java.vendor"), maxKeyLength == Integer.MAX_VALUE ? "secure" : Integer.toString(maxKeyLength));
    p.printf("%s process name: %s%n", indent, runtimeMXBean.getName());
    p.printf("%s         host: %s%n", indent, getLocalHost());
    p.printf("%s          cwd: %s%n", indent, System.getProperty("user.dir"));
    p.printf("%s   free space: %s%n", indent, freeSpace);
    if (!freeSpace.equals(usableSpace))
        p.printf("%s usable space: %s%n", indent, usableSpace);
    p.printf("%s      version: %s (%s)%n", indent, Q2.getVersion(), getRevision());
    p.printf("%s     instance: %s%n", indent, getInstanceIdAsString());
    p.printf("%s       uptime: %s (%f)%n", indent, ISOUtil.millisToString(getServerUptimeAsMillisecond()), loadAverage());
    p.printf("%s   processors: %d%n", indent, r.availableProcessors());
    p.printf("%s       drift : %d%n", indent, delay);
    p.printf("%smemory(t/u/f): %d/%d/%d%n", indent, r.totalMemory() / MB, (r.totalMemory() - r.freeMemory()) / MB, r.freeMemory() / MB);
    p.printf("%s     encoding: %s%n", indent, Charset.defaultCharset());
    p.printf("%s     timezone: %s (%s) %s%n", indent, zi, zi.getDisplayName(TextStyle.FULL, Locale.getDefault()), zi.getRules().getOffset(instant).toString());
    p.printf("%swatch service: %s%n", indent, getServer().getWatchServiceClassname());
    List<ZoneOffsetTransitionRule> l = zi.getRules().getTransitionRules();
    for (ZoneOffsetTransitionRule tr : l) {
        p.printf("%s         rule: %s%n", indent, tr.toString());
    }
    ZoneOffsetTransition tran = zi.getRules().nextTransition(instant);
    if (tran != null) {
        Instant in = tran.getInstant();
        p.printf("%s   transition: %s (%s)%n", indent, in, in.atZone(zi));
    }
    p.printf("%s        clock: %d %s%n", indent, System.currentTimeMillis() / 1000L, instant);
    if (hasSecurityManager())
        p.printf("%s  sec-manager: %s%n", indent, getSecurityManager());
    p.printf("%s thread count: %d%n", indent, mxBean.getThreadCount());
    p.printf("%s peak threads: %d%n", indent, mxBean.getPeakThreadCount());
    p.printf("%s user threads: %d%n", indent, Thread.activeCount());
    showThreadGroup(Thread.currentThread().getThreadGroup(), p, newIndent);
    NameRegistrar.getInstance().dump(p, indent, detailRequired);
    for (String s : scripts) {
        p.printf("%s%s:%n", indent, s);
        exec(s, p, newIndent);
    }
    return baos.toString();
}

Example 88 with RuntimeMXBean

use of java.lang.management.RuntimeMXBean in project suite by stupidsing.

the class FileUtil method getPid.

public static int getPid() {
    RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
    return Rethrow.ex(() -> {
        Field jvm = runtime.getClass().getDeclaredField("jvm");
        jvm.setAccessible(true);
        Object vmm = jvm.get(runtime);
        Method method = vmm.getClass().getDeclaredMethod("getProcessId");
        method.setAccessible(true);
        return (Integer) method.invoke(jvm.get(runtime));
    });
}

Example 89 with RuntimeMXBean

use of java.lang.management.RuntimeMXBean in project Payara by payara.

the class PhoneHomeTask method getUptime.

private String getUptime() {
    RuntimeMXBean mxbean = ManagementFactory.getRuntimeMXBean();
    long totalTime_ms = -1;
    if (mxbean != null)
        totalTime_ms = mxbean.getUptime();
    if (totalTime_ms <= 0 && env != null) {
        StartupContext ctx = env.getStartupContext();
        if (ctx != null) {
            long start = ctx.getCreationTime();
            totalTime_ms = System.currentTimeMillis() - start;
        }
    }
    return Long.toString(totalTime_ms);
}

Example 90 with RuntimeMXBean

use of java.lang.management.RuntimeMXBean in project Payara by payara.

the class ThreadMonitor method getTitle.

private String getTitle() throws Exception {
    final RuntimeMXBean rt = ManagementFactory.newPlatformMXBeanProxy(mbsc, ManagementFactory.RUNTIME_MXBEAN_NAME, RuntimeMXBean.class);
    final String vmname = rt.getVmName();
    final String vmversion = rt.getVmVersion();
    final String vmvendor = rt.getVmVendor();
    final String title = sm.getString("td.title", vmname, vmversion, vmvendor);
    return (title);
}