I am attempting to deploy the Petstore example on JBoss 2.1 running on Linux
using the Sun JDK1.3. The .ear file is successfully deployed by JBoss, but
when I click on the link to enter the store, the following exception is
displayed - has anybody had a similiar problem and found a solution?
Error: 500
Location: /estore/control/language
Internal Servlet Error:
java.lang.NullPointerException
at
com.sun.j2ee.blueprints.petstore.control.web.ScreenFlowXmlDAO.getScreenDefin
itions(ScreenFlowXmlDAO.java:125)
at
com.sun.j2ee.blueprints.petstore.control.web.ScreenFlowXmlDAO.loadScreenDefi
nitionMappings(ScreenFlowXmlDAO.java:100)
at
com.sun.j2ee.blueprints.petstore.control.web.ScreenFlowManager.init(ScreenFl
owManager.java:40)
at
com.sun.j2ee.blueprints.petstore.control.web.MainServlet.getScreenFlowManage
r(MainServlet.java:96)
at
com.sun.j2ee.blueprints.petstore.control.web.MainServlet.init(MainServlet.ja
va:37)
at javax.servlet.GenericServlet.init(GenericServlet.java:258)
at
org.apache.tomcat.core.ServletWrapper.doInit(ServletWrapper.java:317)
at org.apache.tomcat.core.Handler.init(Handler.java:215)
at
org.apache.tomcat.core.ServletWrapper.init(ServletWrapper.java:296)
at org.apache.tomcat.core.Handler.service(Handler.java:254)
at
org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
at
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:79
7)
at
org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)
at
org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpC
onnectionHandler.java:210)
at
org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)
at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498)
at java.lang.Thread.run(Thread.java:484)
Thanks.
James Drever
University of Birmingham
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