I'm trying to migrate a struts-based webapp from Tomcat 4.1.18 to Oracle 10g.
The webapp uses XSLT and FOP. I got the following error:
500 Internal Server Error
java.lang.NullPointerException
at org.apache.commons.digester.Digester.getXMLReader(Digester.java:891)
at org.apache.commons.digester.Digester.parse(Digester.java:1572)
at
org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionServlet.java:1006)
at
org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet.java:955)
at org.apache.struts.action.ActionServlet.init(ActionServlet.java:470)
at javax.servlet.GenericServlet.init(GenericServlet.java:258)
at com.evermind[Oracle Application Server Containers for J2EE 10g
(10.1.2.0.2)].server.http.HttpApplication.loadServlet(HttpApplication.java:2354)
at com.evermind[Oracle Application Server Containers for J2EE 10g
(10.1.2.0.2)].server.http.HttpApplication.findServlet(HttpApplication.java:4795)
at com.evermind[Oracle Application Server Containers for J2EE 10g
(10.1.2.0.2)].server.http.HttpApplication.getRequestDispatcher(HttpApplication.java:2821)
at com.evermind[Oracle Application Server Containers for J2EE 10g
(10.1.2.0.2)].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:680)
at com.evermind[Oracle Application Server Containers for J2EE 10g
(10.1.2.0.2)].server.http.AJPRequestHandler.run(AJPRequestHandler.java:224)
at com.evermind[Oracle Application Server Containers for J2EE 10g
(10.1.2.0.2)].server.http.AJPRequestHandler.run(AJPRequestHandler.java:133)
at com.evermind[Oracle Application Server Containers for J2EE 10g
(10.1.2.0.2)].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
at java.lang.Thread.run(Thread.java:534)
Any ideas what and why this is happening?
I had to downgrade from struts 1.2.7 to struts 1.1 to get this far. Otherwise,
I'd stumble on:
javax.servlet.UnavailableException
at org.apache.struts.action.ActionServlet.init(ActionServlet.java:368)
and wouldn't even get to the Digester.
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