We recently ran into an issue where the requestDestroyed() method of listeners 
were not being called when exceptions were propagated out of our application.

Looking into the code, it seems related to this[1]. Is this the expected 
behavior for listeners and we can’t rely on the requestDestroyed() method 
always being called for a request? 

One option we have considered is migrating to exclusively using filters and 
handling the exceptional use case explicitly there. Is there a recommended 
approach for this use case?

-Simon



[1] 
http://grepcode.com/file/repo1.maven.org/maven2/org.apache.tomcat.embed/tomcat-embed-core/7.0.59/org/apache/catalina/core/ApplicationDispatcher.java#486

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