HTTP Status 500 - java.lang.NullPointerException

type Exception report

message java.lang.NullPointerException

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

exception

javax.servlet.ServletException: java.lang.NullPointerException
	org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:533)
	org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:427)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

root cause

java.lang.NullPointerException
	org.apache.catalina.loader.WebappClassLoader.findResourceInternal(WebappClassLoader.java:3081)
	org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2858)
	org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1171)
	org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1679)
	org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1557)
	org.apache.struts.util.RequestUtils.applicationClass(RequestUtils.java:124)
	org.apache.struts.util.RequestUtils.applicationInstance(RequestUtils.java:172)
	org.apache.struts.util.RequestUtils.applicationInstance(RequestUtils.java:147)
	org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:526)
	org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:427)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

note The full stack trace of the root cause is available in the Apache Tomcat/7.0.28 logs.

Apache Tomcat/7.0.28