|Title|NPE accessing UserPreferences
|Date|01-Aug-2005 21:19:19 EEST
|Version|2.2.28
|Submitter|ByronVT
|[Bug criticality]|LightBug
|Browser version|IE 6.0
|[Bug status]|ClosedBug
|[PageProvider] used|FileSystemProvider
|Servlet Container|Tomcat5.5
|Operating System|Windows2003
|URL|http://localhost:8080/ScsWiki/UserPreferences.jsp
|Java version|1.5.0_03

Upon accessing the UserPreferences page the following error is captured.
{{{
JSPWiki has detected an error
Error Message 
An unknown exception java.lang.NullPointerException was caught by Error.jsp. 
Exception 
java.lang.NullPointerException 
Place where detected 
org.apache.jasper.runtime.JspRuntimeLibrary.getContextRelativePath(), line 908 
}}}

And the accompanying stack:
{{{
2005-08-01 14:18:10,887 [http-8080-Processor21] DEBUG com.ecyrd.jspwiki.WikiEngine ScsWiki:UserPreferences - Servlet path is: /UserPreferences.jsp
2005-08-01 14:18:10,887 [http-8080-Processor21] DEBUG com.ecyrd.jspwiki.WikiEngine ScsWiki:UserPreferences - Mapped to UserPreferences
2005-08-01 14:18:10,887 [http-8080-Processor21] DEBUG com.ecyrd.jspwiki.auth.UserManager ScsWiki:UserPreferences - Stored username=null
2005-08-01 14:18:10,887 [http-8080-Processor21] DEBUG JSPWiki ScsWiki:UserPreferences ScsWiki:UserPreferences - Error.jsp exception is: 
java.lang.NullPointerException
	at org.apache.jasper.runtime.JspRuntimeLibrary.getContextRelativePath(JspRuntimeLibrary.java:908)
	at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:963)
	at org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:604)
	at com.ecyrd.jspwiki.tags.IncludeTag.doEndTag(IncludeTag.java:68)
	at org.apache.jsp.UserPreferences_jsp._jspService(org.apache.jsp.UserPreferences_jsp:158)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:407)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:526)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
	at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
	at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	at java.lang.Thread.run(Unknown Source)

}}}
----
This is a very old one, on the current releases it doesnt occur anymore, closing the bug.

--HarryMetske