MULE-7907: Raise an exception if rollback or commit operations were OK, but close operation failed.

(cherry picked from commit fa65f1a1ff688ee522b3483cecf846605d8eef86)

The file transports/jdbc/src/test/java/org/mule/transport/jdbc/JdbcTransactionTestCase.java was changed in order to use jUnit 4.9.

(cherry picked from commit b9e23d1df3617bd469c2370bbe4595469f61d5c5)