There were a lot changes since the 1.0.1 release on 12 Aug 2002.

• A lot of corner cases were fixed


• Performance improvement by optimizing pool synchronization, the critical code paths were optimized by reducing pool synchronization but we also added more synchronization where needed


• New minIdle feature: the minimum number of objects allowed in the pool before the evictor thread (if active) spawns new objects. (Note no objects are created when: numActive + numIdle >= maxActive)


• New maxTotal feature: a cap on the total number of instances controlled by a pool. Only for GenericKeyedObjectPool where maxActive is a cap on the number of active instances from the pool (per key).


• UML Class and sequence diagrams


• The following issues were resolved since v1.0.1: (see Bugzilla for complete description)

  ID	Date	Sev	State	Summary
  12840	2002-10-31	Enh	FIXE	Factor out syncronized block Evictor code to method
  12841	2002-10-30	Nor	FIXE	GenericObjectPool unused variable and unused synchronized block
  13128	2002-10-30	Maj	DUPL	GenericKeyedObjectPool: _activeMap.get(key) increment is not balanced with decrements
  13649	2002-10-29	Nor	FIXE	GenericObjectPool: Negative _maxActive doesn't allow growth
  13705	2002-10-30	Nor	FIXE	Add invalidateObject() method to ObjectPool
  14970	2002-11-30	Nor	FIXE	Passing null for Stack[Keyed]ObjectPool factory causes NullPointerException
  14981	2003-04-24	Nor	FIXE	getNumActive() count is wrong when returnObject() is used to pre-populate StackObjectPool
  14982	2003-03-05	Enh	FIXE	GenericObjectPool does not work with null factory.
  14983	2003-03-14	Enh	FIXE	GenericObjectPool should allow for manual population of the pool
  17931	2003-03-13	Min	FIXE	Patch to update the javadocs for StackObjectPool
  17962	2003-03-13	Nor	FIXE	Misc javadoc updates and clean up for GenericKeyedObjectPool
  17963	2003-03-13	Enh	FIXE	General cleanup in GenericObjectPool
  17968	2003-03-13	Enh	FIXE	Allow zero idle objects in GenericObjectPool
  17969	2003-03-13	Nor	FIXE	Additional javadocs for StackKeyedObjectPool
  17990	2003-04-18	Maj	FIXE	Leaking DB connections - synch problem in GenericKeyedObject
  18062	2003-04-18	Cri	FIXE	borrowObject/validation infinite loop and deadlock issue in
  18617	2003-04-07	Min	FIXE	DelegatingPreparedStatement throws misleading exception
  19192	2003-04-22	Enh	FIXE	over agressive synchronize causing performance problem
  21838	2003-08-11	Enh	FIXE	Weird HTML makes the pool example doc hard to read
  22597	2003-08-21	Enh	FIXE	minIdle Functionality
  23060	2003-09-20	Cri	FIXE	Pool not available for download