This article demonstrates the ease of handling both JTA and non-JTA (i.e. local) transactions - or both at the same time - with the UltraESB. In addition to the ease of use, the power to suspend and resume transactions, or to operate with multiple transactions within a message flow allows any requirement to be met much more easily. Compare the ease of use and the features - by reference with articles describing a subset of this functionality with the JBoss ESB and the WSO2 ESB.
Read the complete article here - which is less than a page of text, and without any hidden source code, compiled classes, bundling and deployment of artifacts etc.