IBM Support

IV35525: DEBUG (FSD) DOES NOT WORK WITH SHARED LOCAL SLOTS IN THE BYTECOD ES IN SOME SITUATIONS

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APAR status

  • Closed as program error.

Error description

  • Error Message: NullPointerException
.
Stack Trace: java.lang.NullPointerException
        at java.lang.StringCoding.encode(StringCoding.java:622)
        at java.lang.String.getBytes(String.java:789)
        at java.io.FileInputStream.open(Native Method)
        at
java.io.FileInputStream.<init>(FileInputStream.java:138)
        at
java.io.FileInputStream.<init>(FileInputStream.java:97)
.

Local fix

  • -Xjit:disableLocalCSE

Problem summary

  • Copy propagation of an auto slot that is shared between a
reference and non reference local can result in unexpected
null/zero values under FSD mode.

Problem conclusion

  • This defect will be fixed in:
7.0.0 SR4
6.0.1 SR5
6.0.0 SR13
5.0.0 SR16
WRT-V3 SR4
.
The JIT compiler was modified to avoid this problem.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV35525
    • 

  • Reported component name
    JIT
    • 

  • Reported component ID
    620700124
    • 

  • Reported release
    260
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2013-01-18
    • 

  • Closed date
    2013-01-18
    • 

  • Last modified date
    2013-03-04
    • 





    

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

    • 

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

    
IV35526 IV37464
    

    • 



Fix information


    

  • Fixed component name
    JIT
    • 

  • Fixed component ID
    620700124
    • 



Applicable component levels


    

  • R260  PSY
       UP
    • 

  • R600  PSY
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            04 March 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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