src/main/java/com/groupon/uuid/UUID.java
private static int processId() {
        // Note: may fail in some JVM implementations
        // something like '<pid>@<hostname>', at least in SUN / Oracle JVMs
        final String jvmName = ManagementFactory.getRuntimeMXBean().getName();
        final int index = jvmName.indexOf('@');

        if (index < 1)
            throw new RuntimeException("Could not get PID");

        try {
            return Integer.parseInt(jvmName.substring(0, index)) % MAX_PID;
        } catch (NumberFormatException e) {
            throw new RuntimeException("Could not get PID");
        }
    }
private static int processId() {
        // Note: may fail in some JVM implementations
        // something like '<pid>@<hostname>', at least in SUN / Oracle JVMs
        final String jvmName = ManagementFactory.getRuntimeMXBean().getName();
        final int index = jvmName.indexOf('@');

        if (index < 1)
            throw new RuntimeException("Could not get PID");

        try {
            return Integer.parseInt(jvmName.substring(0, index)) % MAX_PID;
        } catch (NumberFormatException e) {
            throw new RuntimeException("Could not get PID");
        }
    }
private static int processId ( ) { // Note: may fail in some JVM implementations // something like '<pid>@<hostname>', at least in SUN / Oracle JVMs final String jvmName = ManagementFactory . getRuntimeMXBean ( ) . getName ( ) ; final int index = jvmName . indexOf ( ' ' ) ; if ( index < 1 ) throw new RuntimeException ( "Could not get PID" ) ; try { return Integer . parseInt ( jvmName . substring ( 0 , index ) ) % MAX_PID ; } catch ( NumberFormatException e ) { throw new RuntimeException ( "Could not get PID" ) ; } }
Get the process id of this JVM. I haven't tested this extensively so its possible that this performs differently
on esoteric JVMs. I copied this from:
http://stackoverflow.com/questions/35842/how-can-a-java-program-get-its-own-process-id
@return Id of the current JVM process.
Get the process id of this JVM . I haven t tested this extensively so its possible that this performs differently on esoteric JVMs . I copied this from : http : // stackoverflow . com / questions / 35842 / how - can - a - java - program - get - its - own - process - id