After updating from NiFi 1.0 to 1.1.1, I am unable to browse into one or more of my Processor Groups. The UI seems to work until I double click on a specific Processor Group, then the UI throws an error "An unexpected error has occurred" and I find the following in the nifi-user.log log file:
2017-01-05 22:29:15,886 INFO [NiFi Web Server-19] org.apache.nifi.web.filter.RequestLogger Attempting request for (anonymous) GET http://servername:10000/nifi-api/flow/process-groups/e8a4ad16-1b4e-3afc-a8e0-0a2cdda95632 (source ip: ipaddress) 2017-01-05 22:29:16,397 INFO [NiFi Web Server-305] org.apache.nifi.web.filter.RequestLogger Attempting request for (anonymous) GET http:// servername:10000/nifi-api/flow/current-user (source ip: ipaddress) ... 2017-01-05 22:29:16,402 ERROR [NiFi Web Server-299] o.a.nifi.web.api.config.ThrowableMapper An unexpected error has occurred: java.lang.NullPointerException. Returning Internal Server Error response. java.lang.NullPointerException: null ... 2017-01-05 22:29:16,408 INFO [NiFi Web Server-305] org.apache.nifi.web.filter.RequestLogger Attempting request for (anonymous) GET http:// servername:10000/nifi-api/flow/controller/bulletins (source ip: 10 ipaddress) 2017-01-05 22:29:16,821 INFO [NiFi Web Server-19] org.apache.nifi.web.filter.RequestLogger Attempting request for (anonymous) GET http:// servername:10000/nifi-api/site-to-site (source ip: ipaddress) Any advice on how to proceed? Thanks, Kevin
