OS : Mac OS X 10.4.5/10.3.9

JVM :
java version "1.4.2_09"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_09-232)
Java HotSpot(TM) Client VM (build 1.4.2-54, mixed mode)

IDE : Netbeans 5.0 Build 200601251500

Hi all,

I've got a strange behaviour with Tomcat 5.5.15.

I've developped an application under tomcat 4.1.31 (J2EE 1.3).
When I deploy this application in Tomcat 5.5.9 (with compat), all is ok.

But when I deploy this application in Tomcat 5.5.15 or 5.5.16 (with
compat), I've got this error message :

------------------------------------------------------------------------
-------------------------------------------------
10 mars 2006 09:26:18 org.apache.catalina.core.StandardWrapperValve
invoke
GRAVE: "Servlet.service()" pour la servlet jsp a généré une exception
org.apache.jasper.JasperException: Tentative d''opération bean sur un
objet nul.
     at
org.apache.jasper.runtime.JspRuntimeLibrary.handleGetProperty
(JspRuntimeLibrary.java:601)
     at org.apache.jsp.home_jsp._jspService
(org.apache.jsp.home_jsp:314)
     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:332)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile
(JspServlet.java:314)
     at org.apache.jasper.servlet.JspServlet.service
(JspServlet.java:264)
     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:869)
     at org.apache.coyote.http11.Http11BaseProtocol
$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:667)
     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 (Thread.java:552)
------------------------------------------------------------------------
-------------------------------------------------

Any ideas ????

Jipi