I am trying to use jdbcappender.jar to insert the log4j messages into a database table using JDBCSqlHandler by creating my own SqlHandler Class as MySqlHandler The properties i have mentioned in the log4j.xml are as follows: where I have bundled the class MySQLHandler as a jar file and placed in server/lib folder. On starting the server I get an error during log4j initialization as follows in two lines successively and the MYSqlhandler is not working . log4j:ERROR JDBCAppender::setSqlhandler(), sqlhandler must be derived of JDBCSqlHandler ! log4j:ERROR JDBCAppender::setSqlhandler(), sqlhandler must be derived of JDBCSqlHandler ! Please help me ASAP , on this as I tried seraching a lot on the forum and google but couldn't get any help .... Thanks in Advance .... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4073483#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...