JTS before_completion in SynchronizationImple swallows and hides exceptions --------------------------------------------------------------------------- Key: JBTM-2879 URL: https://issues.jboss.org/browse/JBTM-2879 Project: JBoss Transaction Manager Issue Type: Enhancement Components: JTS Reporter: David Lloyd Assignee: Ondra Chaloupka Fix For: 5.5.7.Final, 5.6.0.Final In [SynchronizationImple|https://github.com/jbosstm/narayana/blob/781ace284d8...], if the user's synchronization fails, the exception is swallowed and never logged. Instead a descriptionless {{UNKNOWN}} is thrown. The exception should at least be logged to aid in troubleshooting. Later in the same file, {{after_completion}} is using {{e.printStackTrace()}} to log the stack, which is also less than ideal.