Remko Popma created LOG4J2-1593:
-----------------------------------

             Summary: Concrete Filter implementations should override equals 
and hashCode
                 Key: LOG4J2-1593
                 URL: https://issues.apache.org/jira/browse/LOG4J2-1593
             Project: Log4j 2
          Issue Type: Improvement
          Components: Filters
            Reporter: Remko Popma


For {{CompositeFilter.remove(Filter)}} to work correctly, concrete Filter 
implementations should override {{equals}} and {{hashCode}}. 

This is because CompositeFilter uses List.remove(Object), comparing by 
equality. Applications that keep a reference to the Filter object that was 
registered will work, but for example registering and unregistering serialized 
and deserialized instances via JMX will not work without this.



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