[FLINK-5239] Properly unpack thrown exceptions in RPC methods

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.3.0
• Component/s: Runtime / Coordination
• Labels: flip-6

Environment

flip-6 feature branch.

• Assignee: Stephan Ewen
• Reporter: Stephan Ewen
• Created: 02/Dec/16 16:44
• Updated: 02/Oct/19 17:42
• Resolved: 14/Feb/17 21:04

Description

When an RPC invocation fails, the exception is an InvocationTargetException that contains the actual exception.

We should report the actual exception to the sender, rather than the InvocationTargetException.