Essence 0.73 has significantly improved testing.

As a result it hase 22 fixes and enhancements.

A summary of changes

Bug fixes
1667472 Ensure clear() also performs a flush() for all collections
1667460 Getters which start with has or is must be boolean.
1667459 Use a standard prefix for system properties
1667454 DataSockets must close when in FINISHED state
1667451 Command line properties should override ContainerProperties
1667450 Fix a race condition where new callbacks to a set miss event
1667443 Ensure cache test drop resources cleanly.
1667441 Ensure the Socket server is shutdown correctly

Enhancements
1667491 Increase the max memory size of ant tests
1667477 When a thread pools queue is getting long print the head.
1667476 Closing the container closes mbeans assigned to it.
1667474 Add support for immeidately called callbacks.
1667470 Support the recursive removal of a directory.
1667469 Support the creation of temporary directories
1667465 Add StringUtils.asStringBySep() and asStringByLine()
1667464 DataValueClass.getField() to support getters
1667456 DataSocket Factory to cache more than one DataSocket
1667452 Support merged config files
1667448 Add a round trip sample program
1667446 Drop support for Transactional Callbacks
1667439 Add system metric monitor class.
1667438 Improve test framework

Sample programs
1667704 Add sample to test multi-host caching. - RoundAndRound