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IZ78157: JAVA.UTIL.WEAKHASHMAP BEHAVE DIFFERENTLY FROM RI

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APAR status

  • Closed as program error.

Error description

  • Error Message: N/A
.
Stack Trace: N/A
.

Local fix

  • 



Problem summary


    

  • The problem is actually caused by
javax.swing.text.StyleContext$SmallAttributeSet.equals() method:
set1.equals(set2) is true but set2.equals(set1) is false. This
StyleContext$SmallAttributeSet.equals() method is unsymmetric
which conflicts with Java Spec.
More important, even with the above issue, customer's app works
well on SUNJDK6 while behave differently on IBMJDK6 due to some
behavior difference on the java.util.WeakHashMap class.

    



Problem conclusion


    

  • This defect will be fixed in:
6.0.0 SR9
.
We made a workaround to java.util.WeakHashMap class to keep the
same behavior as RI to prevent such a issue to happen.
.
To obtain the fix:
Install build 20100702 or later

    



Temporary fix



Comments


    

  • 



APAR Information




    

  • APAR number
    IZ78157
    • 

  • 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
    2010-06-29
    • 

  • Closed date
    2010-07-01
    • 

  • Last modified date
    2012-01-06
    • 





    

  • 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  PSN
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            06 January 2012
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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