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RS02959: POTENTIAL RISK FOR CONCURRENCY IN CONNECTIONCLOSED METHOD OF ILRCONNECTIONEVENTLISTENERSUPPORT

Fixes are available

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Operational Decision Manager V8.9.0.2: Interim Fix 15

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APAR status

  • Closed as program error.

Error description

  • With current implementation in connectionClosed method of
IlrConnectionEventListenerSupport, it is possible to get
ConcurrentModificationException when there is a 3rd party code
doing connectionClosed.

Local fix

  • code fix

Problem summary

  • In the executionserver xu, the current implementation of
connectionClosed method in IlrConnectionEventListerSupport
could lead to a ConccurrentModificationException when there is
a third party code doing a connectionClosed like:
Caused by: java.util.ConcurrentModificationException
    at
java.util.ArrayList$Itr.checkForComodification(ArrayList.java:87
1)
    at java.util.ArrayList$Itr.next(ArrayList.java:843)
    at
ilog.rules.res.xu.spi.IlrConnectionEventListenerSupport.connecti
onClosed(IlrConnectionEventListenerSupport.java:75)
    at
ilog.rules.res.xu.spi.IlrManagedXUConnection.closeConnection(Ilr
ManagedXUConnection.java:334)
    at
ilog.rules.res.xu.spi.IlrManagedXUConnection.close(IlrManagedXUC
onnection.java:345)
    at
ilog.rules.res.xu.cci.IlrXUConnection.close(IlrXUConnection.java
:913)
    at
com.ibm.rules.res.xu.client.internal.XUSession.close(XUSession.j
ava:73)
    at
ilog.rules.res.session.impl.IlrStatefulSessionBase.close(IlrStat
efulSessionBase.java:513)
    at
ilog.rules.res.session.impl.IlrStatelessSessionBase.execute(IlrS
tatelessSessionBa

Problem conclusion

  • the code is fixed.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    RS02959
    • 

  • Reported component name
    WDS FOR RULES
    • 

  • Reported component ID
    5725B6903
    • 

  • Reported release
    881
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2017-12-04
    • 

  • Closed date
    2018-01-19
    • 

  • Last modified date
    2018-01-19
    • 





    

  • APAR is sysrouted FROM one or more of the following:
    

    • 

  • APAR is sysrouted TO one or more of the following:
    

    • 



Modules/Macros


    

  • 999

    



Fix information


    

  • Fixed component name
    WDS FOR RULES
    • 

  • Fixed component ID
    5725B6903
    • 



Applicable component levels


    

  • R881  PSY
       UP
    • 








      
              
                            

              

              [{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSQP76","label":"IBM Operational Decision Manager"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"881","Line of Business":{"code":"LOB45","label":"Automation"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            17 February 2022
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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