IBM Support

PQ52728: IF A NULL OBJECT IS ADDED TO A JCOMBOBOX RESULTS IN A JAVA.LANG.NULLPOINTEREXCEPTION.

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • If a null object is added to a JComboBox it resultin the
the following exception:
at javax.swing.JComboBox.getSelectedIndex(JComboBox.java:480)
at javax.swing.plaf.basic.BasicComboPopup.syncListSelection
WithComboBoxSelection(BasicComboPopup.java:853)
at javax.swing.plaf.basic.BasicComboPopup$ListDataHandler.interv
alAdded(BasicComboPopup.java:609)
at javax.swing.AbstractListModel.fireIntervalAdded(AbstractListM
at javax.swing.DefaultComboBoxModel.addElement(DefaultComboBox

Local fix

  • The solution for preventing this NullPointerException is by addi
ng a check for object returned by getElementAt() to be null in t
the function getSelectedIndex (JCombobox.java).

Problem summary

  • As above

Problem conclusion

  • Install PTF10 or any version of java with a build
date of 130-20011005 or later to obtain the fix

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PQ52728
    • 

  • Reported component name
    JAVA2(1.3) COMM
    • 

  • Reported component ID
    5648C9800
    • 

  • Reported release
    130
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2001-09-26
    • 

  • Closed date
    2002-03-20
    • 

  • Last modified date
    2002-03-20
    • 





    

  • 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
    JAVA2(1.3) COMM
    • 

  • Fixed component ID
    5648C9800
    • 



Applicable component levels


    

  • R130  PSN
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            09 February 2022
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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