I am not sure the root cause of this or how to remedy the issue?

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: org/apache/wicket/RequestContext

org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:294)

org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:218)

java.security.AccessController.doPrivileged(Native Method)

com.prosc.tomcat.SetEncoding.doFilter(SetEncoding.java:16)

sun.reflect.GeneratedMethodAccessor71.invoke(Unknown Source)

sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

java.lang.reflect.Method.invoke(Method.java:597)

org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:244)

java.security.AccessController.doPrivileged(Native Method)

javax.security.auth.Subject.doAsPrivileged(Subject.java:517)

org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:276)

org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:218)

root cause

java.lang.NoClassDefFoundError: org/apache/wicket/RequestContext

org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:226)

sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

java.lang.reflect.Method.invoke(Method.java:597)

org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:244)

java.security.AccessController.doPrivileged(Native Method)

javax.security.auth.Subject.doAsPrivileged(Subject.java:517)

org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:276)

org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:218)

java.security.AccessController.doPrivileged(Native Method)

com.prosc.tomcat.SetEncoding.doFilter(SetEncoding.java:16)

sun.reflect.GeneratedMethodAccessor71.invoke(Unknown Source)

sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

java.lang.reflect.Method.invoke(Method.java:597)

org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:244)

java.security.AccessController.doPrivileged(Native Method)

javax.security.auth.Subject.doAsPrivileged(Subject.java:517)

org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:276)

org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:218)

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.23 logs.

Apache Tomcat/5.5.23

I would recommend checking the catalina.log file. I think it will give you a better idea what's going on. I believe a 500 error is something to do with permissions, but I could be mistaken.