[GitHub] nifi issue #3034: NIFI-5479 - Fixed up dependencies to remove the WARNs caus...

[rahulbhanushali]

Github user rahulbhanushali commented on the issue:

    https://github.com/apache/nifi/pull/3034
  
    Hey,
    
    I'm facing this issue while trying to upgrade from 1.6.0 to 1.8.0.
    
    PFB the logs
    ```WARN [main] o.e.jetty.annotations.AnnotationParser Unknown asm 
implementation version, assuming version 393216
    2018-11-30 15:36:58,500 WARN [Process Cluster Protocol Request-2] 
org.apache.nifi.io.socket.SocketListener Dispatching socket request encountered 
exception due to: java.lang.NullPointerException
    java.lang.NullPointerException: null
    2018-11-30 15:36:58,500 WARN [Process Cluster Protocol Request-1] 
org.apache.nifi.io.socket.SocketListener Dispatching socket request encountered 
exception due to: java.lang.NullPointerException
    java.lang.NullPointerException: null
    2018-11-30 15:36:58,647 WARN [main] o.a.nifi.controller.StandardFlowService 
Failed to connect to cluster due to: java.lang.NullPointerException```
    
    This are WARN logs but the node doesn't connect to the cluster when doing a 
rolling restart of the servers. 


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