javax.servlet.jsp.jstl.fmt.request.charset&UTF-8

i am getting these log when use jstl in jsp to replace struts tag info to jstl some conversion or arithmetic operation.

Reason for this :- JSPs will often create a session if one doesn't already exist. This allows JSPs to use the implicit session variable.

2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8
2013-08-13 10:42:44 INFO  SessionAttributeListener:29 - attribute replace in session -->javax.servlet.jsp.jstl.fmt.request.charset&UTF-8

if want to hide these , do default behavior is turned off using the page directive

<%@ page session="false" %> 

Hope This Help You :)