Get Changesets specific to Snapshot in RTC-SCM Programmatically

Hello Team,
My Usecase is below:
i would like to get all Changesets of Snapshot. For this i am doing below search criteria.
Stream + Component + Specific Baseline of Component

Below is line of code i am using,
ChangeSetSearchCriteria changeSetSearchCriteria = IChangeSetSearchCriteria.FACTORY.newInstance();
          changeSetSearchCriteria.setComponent(compHandle);
          changeSetSearchCriteria.setContext(workspHandle);
          changeSetSearchCriteria.setContext(bl.get(inCnt));  bl.get(inCnt) returns IBaseline
          List<IChangeSetHandle> changeSetHandles =
              workspaceMgr.findChangeSets(changeSetSearchCriteria, IWorkspaceManager.MAX_QUERY_SIZE, null);
          System.out.println(changeSetHandles.size());

But above Returns all the changesets of Components which is not i intended.
I expect for specific baseline which is not working.
Could you please let me know what is going wrong here.

Thanks in Advance.