fixed bug TDQ-9438 Handle the closure of mapDB when running the analysis
and drilling down.

fixed junit and some logic error
fixed bug TDQ-9438 Handle the closure of mapDB when running the analysis
and drilling down.

fixed issue about MapDB file clear invalid
fixed bug TDQ-9438 Handle the closure of mapDB when running the analysis
and drilling down.

fixed issue about error result for duplicateCount and uniqueCount
open drill down editor can not remove Close mapDB task from MapDBManager
class