title: how to add custom logging level in log4j
body: <p>I want to add custom logging level security to my log4j.xml file and this log level should be above debug and less than level trace.How to configure the custom logging level in log4j.xml file and when i use the level debug in root element of log4j.xml file  the log level security should not be printed in log file wwhereas if i use custom level security in root element of log4j.xml file all the levels up security  should be printed but not trace.</p>