[UIMA-3572] Fix UIMA-AS race condition

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.2AS
• Fix Version/s: 2.6.0AS
• Component/s: Async Scaleout
• Assignee: Jaroslaw Cwiklik
• Reporter: Jaroslaw Cwiklik
• Created: 21/Jan/14 15:11
• Updated: 06/Mar/14 15:22
• Resolved: 06/Mar/14 15:22

Description

Looks like there is a race condition when handling multiple CASes coming in at the same time from the same client. The first thread creates a Connection and sets up a Session then the second thread sees the Connection made and proceeds to send a reply. The Connection has not yet started though, resulting in

20 Jan 2014 14:32:18,426 WARN DUCC.ActiveMQSessionExecutor - Received a message on a connection which is not yet started. Have you forgotten to call Connection.start()? Connection: ActiveMQConnection

Start the Connection as soon as it is created in a synchronized block.