[Building Sakai] Portal Chat error message

[Omer A Piperdi]

We are seeing quite a few error message like below in catalina.out and 
few of our users complain about pop-up message saying "Chat server 
unavailable".
Any idea or suggestion on this message? This is on sakai-10.x.

Thanks
Omer

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2014-08-28 12:08:32,643 ERROR http-bio-8443-exec-220 
org.sakaiproject.entitybroker.impl.external.SakaiExternalIntegrationProvider 
- Direct request failure: RuntimeException:Fatal error trying to execute 
custom action method: latestData:show:handleLatestData:Direct request 
failure: RuntimeException:Fatal error trying to execute custom action 
method: latestData:show:handleLatestData:
  Sakai version: 10-SNAPSHOT(TRUNK)

Server: sakai.rice.edu(sakai-n3) [sakai-n3-1409135115519]

Request URI: 
/direct/portal-chat/xxxx-61c2-4012-b336-3f0570b50f26/latestData.json
  Path Info: /portal-chat/xxxxx-61c2-4012-b336-3f0570b50f26/latestData.json
  Context path: /direct
  Method: GET

Server: sakai-n3-1409135115519
  User agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) 
Gecko/20100101 Firefox/31.0
  Browser ID: Win-Mozilla
  IP address: xxx.42.206.5
  User ID: xxxxxxxxx-61c2-4012-b336-3f0570b50f26
  User EID: xxxx
  User Display ID: xxxx

Full stacktrace:
RuntimeException:Fatal error trying to execute custom action method: 
latestData:show:handleLatestData:
java.lang.RuntimeException: Fatal error trying to execute custom action 
method: latestData:show:handleLatestData
         at 
org.sakaiproject.entitybroker.rest.EntityActionsManager.handleCustomActionExecution(EntityActionsManager.java:231)
         at 
org.sakaiproject.entitybroker.rest.EntityActionsManager.handleCustomActionRequest(EntityActionsManager.java:96)
         at 
org.sakaiproject.entitybroker.rest.EntityHandlerImpl.handleEntityAccess(EntityHandlerImpl.java:403)
         at 
org.sakaiproject.entitybroker.util.servlet.DirectServlet.dispatch(DirectServlet.java:183)
         at 
org.sakaiproject.entitybroker.servlet.SakaiDirectServlet.dispatch(SakaiDirectServlet.java:146)
         at 
org.sakaiproject.entitybroker.util.servlet.DirectServlet.handleRequest(DirectServlet.java:154)
         at 
org.sakaiproject.entitybroker.util.servlet.DirectServlet.service(DirectServlet.java:132)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)