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IV56681: NULLPOINTEREXCEPTION IS THROWN DURING AN LDAP SEARCH WHEN READ TIMEOUT IS NOT SPECIFIED AFTER APPLYING IV52561

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APAR status

  • Closed as program error.

Error description

  • Error Message: When the property com.sun.jndi.ldap.read.timeout
is not set a NullPointerException is thrown in case of an LDAP
search. This happens intermittently.
.
Stack Trace: Exception in thread "main"
java.lang.NullPointerExceptionat
com.sun.jndi.ldap.LdapClient.getSearchReply(LdapClient.java:656)
at com.sun.jndi.ldap.LdapClient.search(LdapClient.java:574)at
com.sun.jndi.ldap.LdapCtx.doSearch(LdapCtx.java:1997)at
com.sun.jndi.ldap.LdapCtx.searchAux(LdapCtx.java:1859)at
com.sun.jndi.ldap.LdapCtx.c_search(LdapCtx.java:1784)at
com.sun.jndi.toolkit.ctx.ComponentDirContext.p_search(ComponentD
irContext.java:398)at
com.sun.jndi.toolkit.ctx.PartialCompositeDirContext.search(Parti
alCompositeDirContext.java:368)at
javax.naming.directory.InitialDirContext.search(InitialDirContex
t.java:287)
.

Local fix

  • Set the LDAP environment property
com.sun.jndi.ldap.read.timeout  as per application requirement.

Problem summary

  • The problem is caused when an LDAP request is made by a client
to a server and the server takes more than 15 secs to respond
for some reason. The client returns a NullPointerException. When
the read timeout  is not specified, the client should wait
forever for the server to respond until the TCP timeouts.

Problem conclusion

  • This APAR will be fixed in the following Java Releases:
   7    SR7       (7.0.7.0)
   6    SR16      (6.0.16.0)
   6 R1 SR8       (6.1.8.0)
   7 R1 SR1       (7.1.1.0)
.
The JDK has been updated to wait for ever if the environment
property com.sun.jndi.ldap.read.timeout  is not specified by the
LDAP client.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV56681
    • 

  • Reported component name
    JAVA CLASS LIBS
    • 

  • Reported component ID
    620700130
    • 

  • Reported release
    700
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2014-03-14
    • 

  • Closed date
    2014-04-07
    • 

  • Last modified date
    2014-05-09
    • 





    

  • 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
    JAVA CLASS LIBS
    • 

  • Fixed component ID
    620700130
    • 



Applicable component levels


    

  • R700  PSY
       UP
    • 

  • R600  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":"7.0","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]
              

                                                                    

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            22 February 2022
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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