Fixed JpaProducerConcurrentTest failing from time to time on the CI-Server. Also polished it a bit.
Temporarily set the log output to the console to find the root cause of the failing JpaProducerConcurrentTest on CI-Server.
Fixed the CS error of camel-jpa
Fixed JpaProducerConcurrentTest failing from time to time on the CI-Server.
Avoid openjpa warnings about fields being accessed directly instead of using the corresponding setter/getter.
Conflicts:
	components/camel-jpa/src/test/java/org/apache/camel/examples/SendEmail.java
Revert back the added @PreConsumed annotated method being accidentally pushed (CAMEL-6194).