Control-M/Enterprise Manager 9.0.18 gives "java.lang.NullPointerException" error when opening the Self-Service on web browser

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    PRODUCT:

    Control-M/Enterprise Manager


    COMPONENT:

    Control-M/Enterprise Manager


    APPLIES TO:

    Control-M/Enterprise Manager 9.0.18



    PROBLEM:

    - After the installation of Control-M/Enterprise Manager 9.0.18. below error appear when accessing the Control-M Web or the  Self-Service url: http://<EM_Hostname>:18080/ControlM/
    - Error:
    Problem reaching GUI Server
    java.lang.NullPointerException
    General error. See log for more details

    User-added image


    CAUSE:

    The configuration filename etc/ControlM.cfg missing the GuiServer parameter


    SOLUTION:

    Perform the following procedure to resolve this incident:
    1. Login to Control-M/Enterprise Manager Server
    2. Go to below directory:

      Windows: <EM_HOME>/Default/etc/ControlM.cfg  
    Linux: <EM_HOME>/etc/ControlM.cfg 
    3. Verify the configuration file name ControlM.cfg and ensure to have these details:  
      NsHost=localhost  
    NsPort=13075  
    GuiServer=localhost 
      
      4. Any changes from this file require to restart the Web Server to take effect the changes  
       - Login to Control-M Configuration Manager  
       - Under the Control-M/EM Components -> right click Web Server -> Recycle   
     
      Note:  
    From Control-M 9.0.18 interface uses the Webserver Port, the connection from WLA GUI and Control-M Configuration Manager is temporary disconnected and reconnected once the Web Server completed successfully.  
           
      
      

      

     


    Article Number:

    000148741


    Article Type:

    Solutions to a Product Problem



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