Development Component (DC) Structuring Issue

Hello,
Following is the scenario where I am facing the problem :
I have J2EE LIB DC which contains JAVA DC--Lets call this DC as LibDC
I have two EP DC--Lets call these dc's as epDC1 and epDC2
I have EAR (EJB) DC..where I am using Message Driven Bean (MDB) --that is subscribed to Topic inorder to read the messages...Lets call this DC as earDC.
LibDC contains the classes that are shared by all the DC's (epDC1,epDC1,earDC) and JMS client is also the part of this DC (LibDC).
Now epDC1 trigger the JMS by calling the method sitting in LibDC..which in turn publish the message to topic and MDB consume the message and do the remaining business process.
Whole scenario works perfect when I deploy all the DC's...but the problem is.. When ever I make changes to epDC1 and deploy it..it won't work and throws the exception as CLASSCASTEXCEPTION or NOCLASSDEFFOUNDERROR...But If I deploy all the DC's than I dont see any problem..
Every time If I deploy any DC that is using LibDC than I am getting the exception...but If I redeploy all the DC's than I dont have any issues.
Please let me know how to resolve this issue.
Thanks
Edited by: hammad khan on Oct 31, 2008 11:57 PM

Hi,
These errors occurs due to inconsistencies and DC not in sync. check the service packs and versions numbers of the SCA files your are importing. Also import the dependencies into your track.
Regards,
Anil.

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