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

Example 1 with RuntimeMXBean

use of java.lang.management.RuntimeMXBean in project tdi-studio-se by Talend.

the class Agent method getAgentJar.

/**
     * Gets the agent jar file from input arguments.
     * 
     * @return The agent jar file
     */
private static String getAgentJar() {
    RuntimeMXBean runtimeMXBean = ManagementFactory.getRuntimeMXBean();
    List<String> arguments = runtimeMXBean.getInputArguments();
    for (String argument : arguments) {
        if (argument.contains(Constants.JAVA_AGENT_OPTION)) {
            return argument.replace(Constants.JAVA_AGENT_OPTION, "");
        }
    }
    throw new IllegalStateException();
}

Example 2 with RuntimeMXBean

use of java.lang.management.RuntimeMXBean in project voltdb by VoltDB.

the class DirectMemoryUtils method getDirectMemorySize.

/**
   * @return the setting of -XX:MaxDirectMemorySize as a long. Returns 0 if
   *         -XX:MaxDirectMemorySize is not set.
   */
public static long getDirectMemorySize() {
    RuntimeMXBean RuntimemxBean = ManagementFactory.getRuntimeMXBean();
    List<String> arguments = RuntimemxBean.getInputArguments();
    //for the byte case.
    long multiplier = 1;
    for (String s : arguments) {
        if (s.contains("-XX:MaxDirectMemorySize=")) {
            String memSize = s.toLowerCase().replace("-xx:maxdirectmemorysize=", "").trim();
            if (memSize.contains("k")) {
                multiplier = 1024;
            } else if (memSize.contains("m")) {
                multiplier = 1048576;
            } else if (memSize.contains("g")) {
                multiplier = 1073741824;
            }
            memSize = memSize.replaceAll("[^\\d]", "");
            long retValue = Long.parseLong(memSize);
            return retValue * multiplier;
        }
    }
    return 0;
}

Example 3 with RuntimeMXBean

use of java.lang.management.RuntimeMXBean in project jdk8u_jdk by JetBrains.

the class TestManager method connect.

private static void connect(String pid, String address) throws Exception {
    if (address == null) {
        throw new RuntimeException("Local connector address for " + pid + " is null");
    }
    System.out.println("Connect to process " + pid + " via: " + address);
    JMXServiceURL url = new JMXServiceURL(address);
    JMXConnector c = JMXConnectorFactory.connect(url);
    MBeanServerConnection server = c.getMBeanServerConnection();
    System.out.println("Connected.");
    RuntimeMXBean rt = newPlatformMXBeanProxy(server, RUNTIME_MXBEAN_NAME, RuntimeMXBean.class);
    System.out.println(rt.getName());
    // close the connection
    c.close();
}

Example 4 with RuntimeMXBean

use of java.lang.management.RuntimeMXBean in project jdk8u_jdk by JetBrains.

the class MXBeanProxyTest method main.

public static void main(String[] argv) throws Exception {
    boolean iae = false;
    try {
        // Get a MXBean proxy with invalid name
        newPlatformMXBeanProxy(server, "Invalid ObjectName", RuntimeMXBean.class);
    } catch (IllegalArgumentException e) {
        // Expected exception
        System.out.println("EXPECTED: " + e);
        iae = true;
    }
    if (!iae) {
        throw new RuntimeException("Invalid ObjectName " + " was not detected");
    }
    try {
        // Get a MXBean proxy with non existent MXBean
        newPlatformMXBeanProxy(server, "java.lang:type=Foo", RuntimeMXBean.class);
        iae = false;
    } catch (IllegalArgumentException e) {
        // Expected exception
        System.out.println("EXPECTED: " + e);
        iae = true;
    }
    if (!iae) {
        throw new RuntimeException("Non existent MXBean " + " was not detected");
    }
    try {
        // Mismatch MXBean interface
        newPlatformMXBeanProxy(server, RUNTIME_MXBEAN_NAME, ClassLoadingMXBean.class);
        iae = false;
    } catch (IllegalArgumentException e) {
        // Expected exception
        System.out.println("EXPECTED: " + e);
        iae = true;
    }
    if (!iae) {
        throw new RuntimeException("Mismatched MXBean interface " + " was not detected");
    }
    final FooMBean foo = new Foo();
    final ObjectName objName = new ObjectName("java.lang:type=Foo");
    server.registerMBean(foo, objName);
    try {
        // non-platform MXBean
        newPlatformMXBeanProxy(server, "java.lang:type=Foo", FooMBean.class);
        iae = false;
    } catch (IllegalArgumentException e) {
        // Expected exception
        System.out.println("EXPECTED: " + e);
        iae = true;
    }
    if (!iae) {
        throw new RuntimeException("Non-platform MXBean " + " was not detected");
    }
    // Successfully get MXBean
    RuntimeMXBean rm = newPlatformMXBeanProxy(server, RUNTIME_MXBEAN_NAME, RuntimeMXBean.class);
    System.out.println("VM uptime = " + rm.getUptime());
    System.out.println("Test passed.");
}

Example 5 with RuntimeMXBean

use of java.lang.management.RuntimeMXBean in project jdk8u_jdk by JetBrains.

the class ProcessTools method getProcessId.

/**
     * Get the process id of the current running Java process
     *
     * @return Process id
     */
public static int getProcessId() throws Exception {
    // Get the current process id using a reflection hack
    RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
    Field jvm = runtime.getClass().getDeclaredField("jvm");
    jvm.setAccessible(true);
    VMManagement mgmt = (sun.management.VMManagement) jvm.get(runtime);
    Method pid_method = mgmt.getClass().getDeclaredMethod("getProcessId");
    pid_method.setAccessible(true);
    int pid = (Integer) pid_method.invoke(mgmt);
    return pid;
}