If you try to upload a ZIP archive that contains files without an extension in WorldServer Explorer, the following message is displayed: "java.lang.StringIndexOutOfBoundsException: String index out of range: -1".


You can fix this issue by deploying the update to WorldServer 10.4.4 or 10.4.5, available on FTP.

If you cannot deploy it, contact the SDL Support Team:

  • Sign in to your "My SDL" account.
  • Log a support request via Support & Education Support.


  • All systems running WorldServer 10.4.4 or 10.4.5 and experiencing this issue should have this hotfix applied.
  • The fix for this issue is also available in WorldServer 11.1.1.