hpcc-systems/HPCC-Platform — pull request #2595 by wangkx (2012-06-19 14:45:50+00:00)
Title: Fix ESP cores due to WU ID not found

ESP cores have been found due to WU ID is not found by
openWorkUnit(). When openWorkUnit() cannot find a
Workunit ID, it returns a NULL pointer. ESP/WsWorkunits
should check the return of openWorkUnit() before using
it.

Signed-off-by: Kevin Wang