Quote from http://jotm.ow2.org/
JOTM is an open source Transaction Manager implemented in Java.
It supports several transaction models and specifications providing transaction support for clients using a wide range of middleware platforms (J2EE, CORBA, Web Services, OSGi).
JOTM is hosted by the OW2 consortium. The license used by JOTM is BSD-style License.
This implementation is fully functional and mature since it has been used for several years in the JOnAS application server project.
