aix下安装jdk错误，求助

安装不成功，总是报这个错误，不知道什么原因，谢谢大家了
instal: Failed while executing the Java6.sdk.config script.


0503-464 installp: The installation has FAILED for the "usr" part
  of the following filesets:
  Java6.sdk 6.0.0.250

installp: Cleaning up software for:
  Java6.sdk 6.0.0.250

Name Level Part Event Result
-------------------------------------------------------------------------------
Java6.sdk 6.0.0.250 USR APPLY FAILED
Java6.sdk 6.0.0.250 USR CLEANUP SUCCESS