[REEF-1473] Fix CanRunClrBridgeExampleOnLocalRuntime failures in AppVeyor

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.16
• Component/s: REEF.NET
• Assignee: Julia Wang
• Reporter: Mariia Mykhailova
• Created: 27/Jun/16 21:55
• Updated: 21/Mar/17 18:13
• Resolved: 21/Mar/17 18:13

Description

O.A.R.Tests.Functional.Bridge.TestBridgeClient.CanRunClrBridgeExampleOnLocalRuntime fails sometimes in AppVeyor runs (example). The error is

Error message:

System.NullReferenceException : Object reference not set to an instance of an object.

Error stack trace:

   at Org.Apache.REEF.Tests.Functional.Bridge.TestBridgeClient.<RunClrBridgeClient>d__3.MoveNext() in C:\projects\reef\lang\cs\Org.Apache.REEF.Tests\Functional\Bridge\TestBridgeClient.cs:line 60

--- End of stack trace from previous location where exception was thrown ---

   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)

   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)

   at System.Runtime.CompilerServices.TaskAwaiter.GetResult()

   at Org.Apache.REEF.Tests.Functional.Bridge.TestBridgeClient.<CanRunClrBridgeExampleOnLocalRuntime>d__2.MoveNext() in C:\projects\reef\lang\cs\Org.Apache.REEF.Tests\Functional\Bridge\TestBridgeClient.cs:line 50

Looks like strStatus can be null sometimes due to some await problem.