JBoss ON agent reports "Failed to parse line" warning message in log

Issue

• event source does not show events
• one of our servers events are not visible in the Events Tab.
• parsing errors reported in agent.log file
• trying to setup a event generation for a log file, but I dont see any event generated
• agent.log contains errors similar to:

2014-02-21 16:45:35,629 WARN  [EventManager.poller-2] (core.pluginapi.event.log.Log4JLogEntryProcessor)- Failed to parse line [[2014-02-21 16:44:39,987] DEBUG org.springframework.security.web.access.intercept.DefaultFilterInvocationSecurityMetadataSource - Converted URL to lowercase, from: '/example.jsp'; to: '/example.jsp'].

• JON agent failed to parse log message,agent.log contains errors similar to:

2014-10-09 18:35:08,113 WARN  [EventManager.poller-3] (core.pluginapi.event.log.Log4JLogEntryProcessor)- Failed to parse line [###|