Hi
I am using a servlet called Live Access Server(las)[1], and get an error
that none on the las mailing list seems to know the answer to. Maybe
anyone here understands it:
When I open http://testserver.com/las/servlets/dataset I get a 500 error:
#########
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented
it from fulfilling this request.
exception
java.lang.ClassCastException: java.lang.NoClassDefFoundError
gov.noaa.pmel.tmap.ExceptionFilter.doFilter(ExceptionFilter.java:39)
note The full stack trace of the root cause is available in the Apache
Tomcat/5.0 logs.
Apache Tomcat/5.0
#########
My /usr/share/tomcat5/logs/catalina.out says:
#########
javax.servlet.ServletException: Filter execution threw an exception
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:226)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
gov.noaa.pmel.tmap.ExceptionFilter.doFilter(ExceptionFilter.java:24)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at
org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
#########
Does anyone know what causes this error? It seems to me there is
something wrong with the CLASSPATH (maybe caused by me using my existing
tomcat instead of the bundled one?) I don't know how to set the
classpath for servlets in tomcat5 but I did try this:
/usr/share/tomcat5/server/classes$ ln -s \
/usr/share/tomcat5/webapps/las/WEB-INF/classes/gov
But no sigar (yes, I restarted tomcat).
I have tried to use the tomcat bundled with las and the standard one
with Fedora Core 4. I always get the same error. Funny thing is that
with the same javainstall, and the same bundled tomcat it worked at
first try on FC3.
Any help appreciated.
[1] http://ferret.wrc.noaa.gov/Ferret/LAS/Downloads/
--
Bjørge Solli - Office:+47 55205847 cellph.:+47 91614343
Nansen Environmental and Remote Sensing Center - Bergen, Norway
http://www.nersc.no Reception: +47 55205800
Dept.: Mohn-Sverdrup Center for Global Ocean Studies
and Operational Oceanography
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