BTM - Bitronix's JTA transaction manager
========================================
version 1.3.3-RC2, August 29, 2009

Getting started guide: http://docs.codehaus.org/display/BTM/NewUserGuide
Best practices: http://docs.codehaus.org/display/BTM/JtaBestPractices
API javadoc: http://btm.codehaus.org/api/1.3.3-RC2/

 Changes in RC2
 --------------
* improved JndiXAConnectionFactory to allow setting urlPkgPrefixes property (required for HortnetQ support)
* fixed leftover bug from BTM-44
* more tests have been added

 Changes in RC1
 --------------
* Refactored the recoverer to implement a much safer algorithm.
* Background recoverer is now enabled by default and configured with the new property Configuration.backgroundRecoveryIntervalSeconds.
  The backgroundRecoveryInterval property has been depecated.
* Resources which cannot be recoverer during startup now don't prevent the transaction manager from starting up but are simply marked
  as 'failed'. Failed resources cannot be used and are automatically retried by the background recoverer.
  This supercedes the 'retryUnrecoverableResourcesRegistrationInterval' configuration property which has been removed.
* 'currentNodeOnlyRecovery' is now enabled by default (see http://docs.codehaus.org/display/BTM/ImplementationDetails#ImplementationDetails-currentNodeOnlyRecovery).
  The recoverer now logs some INFO message when some XIDs have been skipped because this feature is enabled.
* Fixed race conditions in the asynchronous 2PC engine.

 Bugs fixed in RC1
 -----------------
* BTM-33   	race condition: potential connection leak when closing connection after transaction terminated
* BTM-34 	IllegalArgumentException and MBean exceptions on constraint violation
* BTM-37 	Tomcat LifecycleListener shutting down TM too early
* BTM-38 	NPE in IncrementalRecoverer
* BTM-39 	Improper HeuristicMixedException
* BTM-41 	JNDI Context (BitronixContext) returns null rather than NameNotFoundException
* BTM-42 	bitronix-scheduler is recreated/restart
* BTM-43 	Fix for BTM-33 leads to another problem
* BTM-44 	TransactionLogRecord does not get updated when modified, leading to transaction log corruption
* BTM-45 	potential NPE in Recoverer.run
* BTM-46 	Fall back to current class loader when thread context loader fails (support OSGi)
* BTM-47 	improve unrecoverable resource registration retrial and recoverer implementation
* BTM-48 	change currentNodeOnlyRecovery default value to true
* BTM-49 	Suspend/resume not working as expected
* BTM-50 	Improve JndiXAConnectionFactory in order to be able to use SonicMQ

Using BTM
---------
Required jars are distributed in the lib subdirectory.

Latest Documentation:
   http://docs.codehaus.org/display/BTM/

Bug Reports:
   BTM JIRA (http://jira.codehaus.org/browse/BTM/)
   or BTM mailing list (http://www.nabble.com/Bitronix-Transaction-Manager-f25701.html)


License
-------
This software is distributed under the terms of the GNU Lesser General Public License (see license.txt).

This product includes software developed by the Apache Software Foundation (http://www.apache.org/).