java - Tomcat 501 on non-supported http verbs -

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we getting users hitting our tomcat servers custom http verbs (like unsubscribe). unfortunately, when tomcat encounters 1 of these, returns:

501 not implemented

since it's 500 error, trips our monitor wakes system guys. we're trying figure out how change 400 level error , have ignored tomcat. tried security-constraint don't believe it's right approach (and didn't fix issue).

is there fix this? using version 7.0.55 springmvc 4.0


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