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IZ88862: POOR EJB3 LOOKUP PERFORMANCE IN WAS 7

A fix is available

PM43212: Ship SDK APAR IZ88862 as WebSphere Application Serve interim fix

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Error Message: EJB3 lookups causes performance problem
.
Stack Trace:
java.lang.ClassLoader.loadClass(ClassLoader.java:618)
java.lang.Class.forNameImpl(Native Method)
java.lang.Class.forName(Class.java:169)
javax.naming.spi.NamingManager$3.run(NamingManager.java:821)
javax.naming.spi.NamingManager$3.run(NamingManager.java)
java.security.AccessController.doPrivileged(AccessController.jav
a:202)
javax.naming.spi.NamingManager.factoryForName(NamingManager.java
:817)
javax.naming.spi.NamingManager.factoryForName(NamingManager.java
:776)
javax.naming.spi.NamingManager.getURLContext(NamingManager.java:
653)
com.ibm.ws.naming.util.CommonHelpers.getContextIfUrlName(CommonH
elpers.java:441)
com.ibm.ws.naming.util.CommonHelpers.getContextIfUrlName(CommonH
elpers.java:402)
com.ibm.ws.naming.urlbase.UrlContextImpl.lookup(UrlContextImpl.j
ava:1221)
com.ibm.ws.naming.urlbase.UrlContextImpl.lookup(UrlContextImpl.j
ava:1276)
javax.naming.InitialContext.lookup(InitialContext.java:455)
.

Local fix

  • 



Problem summary


    

  • The problem is caused when the caller want a object, the code
create new ones every time.

    



Problem conclusion


    

  • This defect will be fixed in:
6.0.0 SR10
6.0.1 GA FP1
.
A cache has been added in the code to improve the performance.
.
To obtain the fix:
Install build 20110119 or later

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IZ88862
    • 

  • 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
    2010-11-12
    • 

  • Closed date
    2011-01-20
    • 

  • Last modified date
    2012-06-13
    • 





    

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

    • 

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

    
PM30858 PM66714
    

    • 



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 October 2021
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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