BC Java service (Sorce not available)

Hi,

we are migrating from Business Connector to XI and i am currently looking at the flow in Test Environment. My problem is i could not see the source code for java services. when i double click on a java service it is saying source code not available.

Is there any locking system ? when right click the lock and unlock options are disabled. How to resolve this issue. can anybody help me in this issue

Thanks,

srini