State HTTP 500 -

Report/ratio type of exception

message

description the server met an internal error () which prevented it from satisfying the request.

exception

org.apache.jasper.JasperException 
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:476)

org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:389)

org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:315)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

cause mother

java.lang.NullPointerException 
listener.sessioncounter#connecteduser.<init>(sessioncounter.java:151) 
listener.SessionCounter.setActiveUser(SessionCounter.java:116) 
servlet.Identification.isValidsession(Identification.java:328) 
org.apache.jsp.lejeuintro_jsp._jspService(lejeuintro_jsp.java:85) 
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:803) 
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:328)

org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:315)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

note the complete trace of the mother cause of this error is available in the files newspapers of Apache Tomcat/5.5.23.

Apache Tomcat/5.5.23