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IV26357: POOR PERFORMANCE WITH BITSET CLASS IN JDK 6 / JDK 626 / JDK7 COM PARED TO JDK5

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APAR status

  • Closed as program error.

Error description

  • Error Message: N/A
.
Stack Trace: N/A
.
The BitSet operations are slower in JDK 6, JDK 626 and JDK 7
compared to JDK 5

Local fix

  • N/A

Problem summary

  • The implementation of BitSet class is different from JDK 6
onwards and the new implementation is more operation intensive.

Problem conclusion

  • This defect will be fixed in:
6.0.0 SR11
6.0.1 SR3
7.0.0 SR3
.
Modified the BitSet implementation of JDK 6 and above releases
similar to JDK 5.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV26357
    • 

  • Reported component name
    JAVA CLASS LIBS
    • 

  • Reported component ID
    620700130
    • 

  • Reported release
    600
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2012-08-16
    • 

  • Closed date
    2012-08-16
    • 

  • Last modified date
    2012-08-16
    • 





    

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

    • 

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

    • 



Fix information


    

  • Fixed component name
    JAVA CLASS LIBS
    • 

  • Fixed component ID
    620700130
    • 



Applicable component levels


    

  • R600  PSY
       UP
    • 

  • R700  PSY
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            16 August 2012
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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