public static final int jvmPid() {

		try {

			RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();

			Field jvm = runtime.getClass().getDeclaredField("jvm");

			jvm.setAccessible(true);

			VMManagement mgmt = (VMManagement) jvm.get(runtime);

			Method pidMethod = mgmt.getClass().getDeclaredMethod("getProcessId");

			pidMethod.setAccessible(true);

			int pid = (Integer) pidMethod.invoke(mgmt);

			return pid;

		} catch (Exception e) {

			return -1;

		}

	}