Artem Bilan c3ca61d4a0 Don't wrap SpEL result message to another message ...

The `ExpressionEvaluatingTransactionSynchronizationProcessor` wraps
an expression evaluation result to the `Message` unconditionally

* Don't wrap one message to another if SpEL result is a `Message` per se
* Don't wrap the received message to another if the `expression` isn't
configured.

**Cherry-pick to 4.3.x**

2017-11-27 16:04:41 -05:00

..

src

Don't wrap SpEL result message to another message

2017-11-27 16:04:41 -05:00