[Play-2.5.4][Java] HttpErrorHandlerExceptions$$anon$1: Execution exception[[NullPointerException: null]]

Vishwa Bhat

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Jul 21, 2016, 1:23:17 PM7/21/16

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Hi,

I recently migrated my Play application from v2.4.3 to v2.5.4. I followed Play-Migration documentation and managed to fix all compile-time and run-time DI issues but I got stuck with an issue HttpErrorHandlerExceptions$$anon$1: Execution exception[[NullPointerException: null]] (Stacktrace Img Attached)

Can anyone please help me with the issue? Let me know If you require any more details.

Thank you very much.

Regards,

Vishwa

Screen Shot 2016-07-21 at 8.54.21 PM.png

Greg Methvin

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Jul 21, 2016, 10:35:41 PM7/21/16

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It's hard to tell without seeing more code, but the NPE is happening in filterAction in the DefaultHttpRequestHandler. So my first guess is that one of your filters is returning a null value, or maybe one of the filters you've provided is actually null.

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Greg Methvin

Senior Software Engineer

Lightbend, Inc.

Vishwa Bhat

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Jul 22, 2016, 12:00:20 PM7/22/16

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Hi Greg,

Thank you!! There was one unused Filter lying around in the code that caused this problem. You saved my day!