HTTP Status 500 - The server encountered an internal error () that prevented it from fulfilling this request

[GoogleCodeExporter]

What steps will reproduce the problem?
1.I have finished trying to set up the Oryx editor but when I try to view the 
page it gives the following errors

*********************************************************************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: java.lang.NullPointerException
    org.b3mn.poem.Dispatcher.dispatch(Dispatcher.java:394)
    org.b3mn.poem.Dispatcher.doGet(Dispatcher.java:403)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    org.b3mn.poem.security.filter.AuthenticationFilter.doFilter(AuthenticationFilter.java:155)

root cause

java.lang.NullPointerException
    org.b3mn.poem.Dispatcher.dispatch(Dispatcher.java:373)
    org.b3mn.poem.Dispatcher.doGet(Dispatcher.java:403)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    org.b3mn.poem.security.filter.AuthenticationFilter.doFilter(AuthenticationFilter.java:155)

note The full stack trace of the root cause is available in the Apache 
Tomcat/6.0.24 logs.
Apache Tomcat/6.0.24

please help me to fix the problem with setup

Original issue reported on code.google.com by caston.n...@gmail.com on 17 Sep 2010 at 2:24

• Merged into: #467

[GoogleCodeExporter]

The given information does not suffice to nail down your problem. Please name 
the exact URL you were trying to locate your browser at, the version of 
installed prerequisites (Java, Tomcat, Postgres, Python), whether apps in your 
Tomcat can access the Internet (required for OpenId-login), and the 
HTTP-Request you sent to the server (in case it was not a GET request).

Original comment by mtku...@googlemail.com on 20 Sep 2010 at 7:17

[GoogleCodeExporter]

1. the URL is http://localhost:8080/backend/poem/repository

2. Prerequisites: tomcat6, Java Openjdk, postgresql 8.4 

3. As for the tomcat Internet access..I am not to sure...I am still a novice

Original comment by caston.n...@gmail.com on 20 Sep 2010 at 10:09

[GoogleCodeExporter]

I have disabled login by commenting and uncommenting the appropriate lines in 
AuthenticationFilter.java (lines 80, 81, 82). But I experience the same problem 
as described above by caston.nyabadza and I have pretty much the same 
prerequisites ( Sun Java instead of openJDK, Tomcat 6 as well, postgresql 8.4, 
Python 2.6.5 )

Original comment by Peter.F....@gmail.com on 15 Dec 2010 at 12:14

[GoogleCodeExporter]

I'm getting the same exception as mentioned in the 1st comment "Reported by 
caston.n...@gmail.com, Sep 17, 2010"

Can you please let me know how to resolve that issue?

Thank You.

Original comment by periasam...@gmail.com on 2 Jun 2011 at 8:49

[GoogleCodeExporter]

Original comment by philipp....@student.hpi.uni-potsdam.de on 10 Jun 2011 at 10:19

• Changed state: Duplicate