Handle RejectedExecutionException in WebAsyncManager [SPR-13836]

[spring-projects-issues]

Ian Chan opened SPR-13836 and commented

When a web interface is declared with 'Callable' return type is rejected by the AsyncTaskExecutor, a RejectedExecutionException can be thrown. This exception is currently not caught and the caller thread is still ticking until it times-out before ending.

A (workaround) solution is to use @ControllerAdvice and catch the RejectedExecutionException specifically - but that doesn't stop the timeout task and a stack trace in the logs when timeout expires.

A better solution is to catch the RejectedExecutionException when submitting to AsyncTaskExecutor in the first place (#947)

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Affects: 3.2.16, 4.2.4

Referenced from: commits 29692fc, 1ea9dd0, 93298fc

Backported to: 3.2.17