How to use

JvmMetrics$Singleton

in

org.apache.hadoop.metrics2.source

public static JvmMetrics initSingleton(String processName, String sessionId) {
 return Singleton.INSTANCE.init(processName, sessionId);
}

/**
 * Shutdown the JvmMetrics singleton. This is not necessary if the JVM itself
 * is shutdown, but may be necessary for scenarios where JvmMetrics instance
 * needs to be re-created while the JVM is still around. One such scenario
 * is unit-testing.
 */
public static void shutdownSingleton() {
 Singleton.INSTANCE.shutdown();
}

public static JvmMetrics initSingleton(String processName, String sessionId) {
 return Singleton.INSTANCE.init(processName, sessionId);
}

public static JvmMetrics initSingleton(String processName, String sessionId) {
 return Singleton.INSTANCE.init(processName, sessionId);
}

public static JvmMetrics initSingleton(String processName, String sessionId) {
 return Singleton.INSTANCE.init(processName, sessionId);
}

public static JvmMetrics initSingleton(String processName, String sessionId) {
 return Singleton.INSTANCE.init(processName, sessionId);
}