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  • Error while starting WebLogic Server : java.lang.NumberFormatException: null

    Posted by "" in "troubleshooting, weblogic" on 2010-08-16

    Last week I was working on WebLogic Server where Admin Server failed to start because Disk was 100% full. Admin Server failed to start after clearing some unwanted files from server with below error message

    Error message in Admin Server log file $DOMAIN_HOME/servers/AdminServer/logs/AdminServer.log

    <aug 13, 2010 2:49:51 PM BST> <Critical> <WebLogicServer> <BEA-000386>
    <Server subsystem failed. Reason: java.lang.NumberFormatException: null
    java.lang.NumberFormatException: null
            at java.lang.Integer.parseInt(Integer.java:417)
            at java.lang.Integer.parseInt(Integer.java:499)
            at weblogic.ldap.EmbeddedLDAP.validateVDEDirectories(EmbeddedLDAP.java:1035)
            at weblogic.ldap.EmbeddedLDAP.start(EmbeddedLDAP.java:212)
            at weblogic.t3.srvr.SubsystemRequest.run(SubsystemRequest.java:64)
            Truncated. see log file for complete stacktrace


    Since error was point to embedded LDAP server for weblogic so I compared files related to embedded ldap server ($DOMAIN_HOME/ servers/ AdminServer/ data/ ldap/) with one of our running weblogic instance and found that size of replicas.prop file was 0 byte.


    -rw-r—– 1 oraowc dba 568 Aug 13 09:17 vde.prop
    -rw-r—– 1 oraowc dba   0 Aug 13 09:17 mapping.cfg
    -rw-r—– 1 oraowc dba   0 Aug 13 14:33 replicas.prop



    Option 1 - Open

     $DOMAIN_HOME/servers/AdminServer/data/ldap/conf/replicas.prop and add line


    Option 2- Move file $DOMAIN_HOME/servers/AdminServer/data/ldap/conf/replicas.prop to replicas.prop.bak  (On Restart WebLogic Server will recreate this file)

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    16 Responses to “Error while starting WebLogic Server : java.lang.NumberFormatException: null”

    1. lyonn says:

      Good post, It’s true, I change these file and my weblogic run fine.


    2. mohan says:

      javax.security.auth.login.FailedLoginException: [Security:090303]Authentication Failed: User localhost weblogic.security.providers.authentication.LDAPAtnDelegateException: [Security:090295]caught unexpected exception
      at weblogic.security.providers.authentication.LDAPAtnLoginModuleImpl.login(LDAPAtnLoginModuleImpl.java:244)
      at com.bea.common.security.internal.service.LoginModuleWrapper$1.run(LoginModuleWrapper.java:110)
      at java.security.AccessController.doPrivileged(Native Method)
      at com.bea.common.security.internal.service.LoginModuleWrapper.login(LoginModuleWrapper.java:106)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      Truncated. see log file for complete stacktrace

    3. mohan says:

      can say how to run managed server…i am using weblogic 10.3.3. and oim 11g
      i am getting authentication failure while starting managed server where as weblogic is starting normally

    4. Atul Kumar says:

      @ Mohan,

      1. Did it ever work in past ?
      2. Did you configure OIM server by running condfig.sh (first time)

      If you have boot.properties in $DOMAIN_HOME/servers/oim_server1/security then remove it and then start it using

      $$DOMAIN_HOME/bin/startManagedServer.sh oim_server1 http://weblogicservername:7001

      enter username and password when prompted

    5. José Luis says:

      Thanks you. I change these file and my weblogic start fine, good, my server not start because Disk was 100% full, and it created the empty file.

    6. Mohankumar says:

      where can i download OAM

    7. Mohankumar says:

      Hi..Atul Kumar

      I have installed OAM with AD now i want to upgrade to OAM can u please provide me the doccument to upgade

    8. Atul Kumar says:

      @ Mohankumar,
      Please leave comment under correct post (You can do this under any OAM post where as this is weblogic post)

      Why are you installing OAM when latest in 10g is and in 11g its (why not to install directly)

    9. Mohankumar says:


      while installing oam Oracle Access Manager Identity Server

      i am getting following error…
      i am installing on ubuntu 10.10 can you please provide solution thank you

      The product that you are about to install needs to be owned by a dedicated
      user. Only root or the dedicated user may be able to start the service. Most
      of the time the server is run as `root’ or `nobody’.

      Enter the username the Identity server is running as [nobody] oamuser

      Enter the Group for the above username [nobody] oamuser

      Press 1 for Next, 2 for Previous, 3 to Cancel or 4 to Redisplay [1] 1

      Sorry, invalid user `oamuser’ or invalid group `oamuser’.
      Please check and enter again.

    10. lucasynafuko says:

      Hi Atul Kumar,
      Thanks for your post, it was very helpfull !!

    11. catalin says:

      Thanks Kumar! It worked!

    12. Radek says:

      Thanks, it’working now

    13. morenji says:

      Thank you Atul! You saved my *utt this afternoon ;)

    14. Giga says:

      Just wanted to say Thank you very much :)

    15. Filoteia says:

      This post is very useful. it worked nicely! Thanks :)

    16. Raja says:

      Thanks YOU. You saved lot of TIME.

    Leave a Reply

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