How to clean meta data

[rajasekhar17]

Right now I'm keeping meta data in memory.
Irrespective job status, I prefer to clean these dao objects, soon after job completed, as we want to make each job independent of previous job execution.

Right now, we are getting the folloiwng exception if we try to run the same job again, in websphere using mdb and mq.

A job instance already exists and is complete for parameters  If you want to run this job again, change the parameters,

Please suggest me the changes I need to do in the frame work, to remove this restriction.
Thanks

[DHGarrette]

One easy way to make your job unique is to always add the current timestamp as a parameter.