MonKey used to put log4j records into jamon hashmap. It is the same as
MonKeyImp except it also carries with it a log4j LoggingEvent. This is not
used as part of the key, but is used to display log4j info in any
BufferListeners this object has. To take maximum advantage of the data in the
LoggingEvent of this key use a Log4jBufferListener for log4j JAMon monitors.
A regular FIFO buffer can also be used, however all info in the LoggingEvent
won't be used in this case.