How to find the workspace in which a change set is checked-in (created) and then delivered to the stream using java API?

 Hi,

You cannot in general tell in what workspace a change set was created, although as I recall, there is some workspace information stored in the work-item/change-set, so you might be able to find it there if there is a work item, and if the work item were associated to the change-set when the change-set was created.  The fact that a workspace contains a change set does not mean it was created there.  Similarly, there is no record of the workspace from which a change-set was delivered (it might not have been delivered from a workspace at all ... it might have been delivered directly from another stream, or might be in the stream because of a "replace" operation).