Found the problem/solution. The error occurs because Tomcat uses java 5.0 while the servlet has been compiled with java 1.4. Compiling the servlet with 5.0 resulted in a much nicer log!

Ole Chr Langfjæran wrote:
My servlet seems seemingly to work just fine, but running through the log I've found a whole bunch of FATAL errors. They also seem to have risen without me envoking the servlet and the classes involved are nothing but apache. What could it be?
Errorlog:

java.lang.VerifyError: (class: org/apache/jasper/runtime/PageContextImpl, method: getExpressionEvaluator signature: ()Ljavax/servlet/jsp/el/ExpressionEvaluator;) Wrong return type in function
    at org.apache.jasper.runtime.JspFactoryImpl.internalGetPageContext(JspFactoryImpl.java:99)
    at org.apache.jasper.runtime.JspFactoryImpl.getPageContext(JspFactoryImpl.java:61)
    at org.apache.jsp.index_jsp._jspService(index_jsp.java:32)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
    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.core.StandardHostValve.invoke(StandardHostValve.java:126)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
    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:868)
    at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663)
    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
    at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable


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Ole Christian Langfjæran
Systemutvikler

Seilmakergt. 3, 7725 Steinkjer
[EMAIL PROTECTED]

Tlf.: +47 41 22 36 31
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