HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: null
	de.hochtief.base.HochtiefServletBase.doAction(Unknown Source)
	de.hochtief.base.HochtiefServletBase.doGet(Unknown Source)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:856)

root cause

java.lang.NumberFormatException: null
	java.lang.Integer.parseInt(Integer.java:436)
	java.lang.Integer.parseInt(Integer.java:518)
	de.hochtief.servlets.MainController.perform(Unknown Source)
	de.hochtief.base.HochtiefServletBase.doAction(Unknown Source)
	de.hochtief.base.HochtiefServletBase.doGet(Unknown Source)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:856)

note The full stack trace of the root cause is available in the Apache Tomcat/5.0 logs.

Apache Tomcat/5.0