[UIMA-2304] UIMA AS service serializes Exception object which may contain user defined Exception class not available to the client

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.4.0AS
• Component/s: Async Scaleout
• Assignee: Jaroslaw Cwiklik
• Reporter: Jaroslaw Cwiklik
• Created: 09/Dec/11 16:40
• Updated: 17/May/12 19:44
• Resolved: 17/May/12 19:44

Description

When AE throws an exception UIMA wraps it in AnalysisEngineProcessException which is handed off to UIMA AS. This exception is subsequently serialized as a java object and sent in a reply to the client. The client deserializes the cargo back to a java Exception and hands it off to the application via a callback. The problem is that the Exception stack trace may include user defined Exception class(es) which are not available to the client thus causing ClassNotFound while deserializing a reply. Modify UIMA AS service side to serialize an exception to a String and send that to the client.