Facundo Velazquez opened SPR-16353 and commented

Looking at the code, in CachingConnectionFactory class, I can see this fix was added some years ago for fixing the same case but on the consumer side.
However, Temporary queue producers are always cached.

This scenario was discovered in a request-response scenario which is causing a memory leak in the Mule ESB. At least from my perspective, it doesn't make sense, since temporary queues producers won't be used more than once.

Affects: 4.3.13, 5.0.2

Issue Links:

• CachingConnectionFactory - Invalid session in session cache [SPR-16450] #20995 CachingConnectionFactory - Invalid session in session cache

Referenced from: commits 72590db, bf4cada

Backported to: 4.3.14