Hi ,
Thanks to all.. We have SAP PO 7.4 SP 05 system and were getting the same issue after applying some patches.
We applied few more patches as mentioned in note 1981572 .
And also renamed repository directory inside
K:\usr\sap\<SID>\SYS\global\xi\repository_server\javaws and restarted system.
When we launch ESR, this repository folder is created again with all the jar files.
Thanks,
Roohi