can someone explain this error to me...

[Brian Richards <nc...@pobox.com>]

Basically I was backing up my website onto another computer using scp. I
restarted
tomcat on the new server.  Only some of my pages return this error. others
are working
correctly.  What could cause this?

Thanks,

Brian

<------------EXCEPTION------------------>

Included servlet error: 500
Location:/shows/index.jsp
Internal Servlet Error:

java.lang.NullPointerException
 at org.apache.jasper.compiler.JspCompiler.isOutDated(JspCompiler.java:307)
 at org.apache.jasper.compiler.JspCompiler.(JspCompiler.java:99)
 at
org.apache.jasper.JspEngineContext.createCompiler(JspEngineContext.java:317)
 at org.apache.jasper.servlet.JspServlet.doLoadJSP(JspServlet.java:437)
 at
org.apache.jasper.servlet.JasperLoader12.loadJSP(JasperLoader12.java:146)
 at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:411)
 at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspSe
rvlet.java:152)
 at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.ja
va:164)
 at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:296)
 at org.apache.jasper.servlet.JspServlet.service(JspServlet.java, Compiled
Code)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
 at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:368)
 at org.apache.tomcat.core.Handler.service(Handler.java:261)
 at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:356)
 at
org.apache.tomcat.facade.RequestDispatcherImpl.include(RequestDispatcherImpl
.java:308)
 at
org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:407)
 at
shows._0002fshows_0002findex_0002ejspindex_jsp_3._jspService(_0002fshows_000
2findex_0002ejspindex_jsp_3.java:222)
 at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
 at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.ja
va:177)
 at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:296)
 at org.apache.jasper.servlet.JspServlet.service(JspServlet.java, Compiled
Code)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
 at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:368)
 at org.apache.tomcat.core.Handler.service(Handler.java:261)
 at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:356)
 at
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:72
0)
 at org.apache.tomcat.core.ContextManager.service(ContextManager.java:666)
 at
org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection
(Ajp12ConnectionHandler.java:166)
 at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java,
Compiled Code)
 at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java,
Compiled Code)
 at java.lang.Thread.run(Thread.java:479)