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PM42551: JVM HANGS OR THROWS NATIVE OUT OF MEMORY WHILE LOADING INVALID C LASS FILE

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Error Message: An infinite loop or native Out Of Memory is
reported while loading invalid/corrupted class file.
.
Stack Trace:
.

Local fix

  • 



Problem summary


    

  • The problem is caused by the classfile parser attempting to
access memory past the end of the classfile with an invalid
attribute length field.

    



Problem conclusion


    

  • This defect will be fixed in:
1.4.2 SR13FP10 (z/OS 64-bit)
1.4.2 SR13FP10 (AIX PowerPC 64-bit)
1.4.2 SR13FP10 (Linux AMD64)
1.4.2 SR13FP10 (Windows AMD64)
.
   The JVM has been updated to modify the location where the
length field is verified and throws a java.lang.ClassFormatError
when the error is seen. This issue only occurs in Java 1.4.2
SR13 FP9
.
To obtain the fix:
Install build 20110625 or later

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PM42551
    • 

  • Reported component name
    Z/OS 64 JAVA
    • 

  • Reported component ID
    620400104
    • 

  • Reported release
    14B
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2011-06-29
    • 

  • Closed date
    2011-06-29
    • 

  • Last modified date
    2011-06-29
    • 





    

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

    • 

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

    
IV02450 PM42567 PM42593
    

    • 



Fix information


    

  • Fixed component name
    Z/OS 64 JAVA
    • 

  • Fixed component ID
    620400104
    • 



Applicable component levels


    

  • R14B  PSY
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            29 June 2011
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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