JMX Agent is not collecting data and the connection is failed (4352876)

JMX Agent is not collecting data for Tomcat Server and shows connection failed status in the "JMX Administration" Dashboard.

YYYY-MM-DD HH:MIN:SEC ECHO    <JMXAgent/5.8.1/JMXAgent/JMXAgent_on_hostname-agent> WARN [Quartz-43145] com.quest.jmxagent.ErrorHandler - Connection to MBeanServer failed: Failed to retrieve RMIServer stub: javax.naming.ServiceUnavailableException [Root exception is java.rmi.ConnectException: Connection refused to host: localhost; nested exception is:
 java.net.ConnectException: Connection refused]
java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.ServiceUnavailableException [Root exception is java.rmi.ConnectException: Connection refused to host: localhost; nested exception is:
 java.net.ConnectException: Connection refused]