use HashMap, HashSet instead of the Tree* classes that require Identifier objects implement Comparable
configuring hazelcast tests
further refactoring and start of unit tests for hazelcast elements
small code cleanup - removed unused instantiations of DBUtils.
fixed logic wrt localID and docid. Implemented new method in IdentifierManager to getAllGUIDs from identifier table for implementation of loadAllKeys in ObjectPathMapLoader.
further development of ObjectPathMapLoader.
new class for refreshing the hazelcast map with metacat. Initial commit.
Add in the Hazelcast Id generation namespace and an IdGenerator instance for task ids. Hazelcast will produce cluster-wide unique ids for the "task-ids" namespace, to be used when creating CNreplicationTask objects.
Modify HazelcastService to read configuration information from an on-disk file (not from a jar file). Added init() to start up the service (was calling doRefresh() before. We still need to decide if this is a refreshable service.
move HazelcastService to D1 package
added HazelCast MapStore and MapLoader implementation for SystemMetadata