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IV19793: LINKAGEERROR REPORTED WHEN RELOADING CLASSES

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Error Message: N/A
.
Stack Trace: N/A
.
The VM reports the following error when reloading a previously
unloaded class:
java.lang.LinkageError: loading constraint violation: loader
"com/ibm/abc@1ae0356d" previously initiated loading for a
different type with name "javax/accessibility/xyz" defined by
loader "foo/bar@1ec6b0bc"

Local fix

  • No workaround.  This is extremely rare and is observed only
under specific stress test conditions.

Problem summary

  • This problem is caused when large numbers of classes are being
unloaded and reloaded.

Problem conclusion

  • This APAR will be fixed in:
   7    SR1       (7.0.1.0)
   6 R1 SR1       (6.1.1.0)
   6    SR16 FP4  (6.0.16.4)
.
The JVM class loading constraints algorithm has been updated to
accommodate this situation.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV19793
    • 

  • Reported component name
    J9 COMMON CODE
    • 

  • Reported component ID
    620700127
    • 

  • Reported release
    260
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2012-04-16
    • 

  • Closed date
    2012-04-16
    • 

  • Last modified date
    2015-04-07
    • 





    

  • 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
    J9 COMMON CODE
    • 

  • Fixed component ID
    620700127
    • 



Applicable component levels


    

  • R260  PSY
       UP
    • 








      
              
                            

              

              [{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSNVBF","label":"Runtimes for Java Technology"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"6.1","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            21 February 2022
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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