ServletContext-ges: Servlet failed with Exception

[crisabanades]

I have a problem when I execute my application. I deployed my EJB's without problems but the initial servlet don't works.
Help me please!
java.lang.ClassCastException at com.sun.corba.se.internal.javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:296)
at javax.rmi.PortableRemoteObject.narrow(PortableRemoteObject.java:137)
at src.servlet.gesServlet.init(gesServlet.java:122)
at src.servlet.mainServlet.init(mainServlet.java:38)
at weblogic.servlet.internal.ServletStubImpl.createServlet(ServletStubImpl.java:390)
at weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStubImpl.java:349)
at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:338)
at weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:164)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:99)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java:742)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java:686)
at weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContextManager.java:247)
at weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:361)
at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:261)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
java.lang.NullPointerException
at src.servlet.gesServlet.init(gesServlet.java:127)
at src.servlet.mainServlet.init(mainServlet.java:38)
at weblogic.servlet.internal.ServletStubImpl.createServlet(ServletStubImpl.java:390)
at weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStubImpl.java:349)
at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:338)
at weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:164)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:99)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java:742)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java:686)
at weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContextManager.java:247)
at weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:361)
at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:261)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
lun ago 27 13:57:32 CEST 2001:<E> <ServletContext-ges> Servlet failed with Exception
java.lang.NullPointerException
at src.servlet.gesServlet.init(gesServlet.java:135)
at src.servlet.mainServlet.init(mainServlet.java:38)
at weblogic.servlet.internal.ServletStubImpl.createServlet(ServletStubImpl.java:390)
at weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStubImpl.java:349)
at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:338)
at weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:164)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:99)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java:742)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java:686)
at weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContextManager.java:247)
at weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:361)
at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:261)

[Anonymous]

You might want to publish some code if you want us to answer that, but ist seams you are not calling narrow with the correct parameters.

[crisabanades]

Originally posted by sven veer:
You might want to publish some code if you want us to answer that, but ist seams you are not calling narrow with the correct parameters.

Source:
// Compone ip ort del monitor
String monLoc=new String(p.get("mon_ip")+":"+p.get("mon_port"));
p2=getPropBySapp(monLoc);

// Localiza home y remote
try {
InitialContext ctx = new InitialContext(p2);
Object objref = ctx.lookup("UserMonitor");
homeUMon =(UserMonitorHome)PortableRemoteObject.narrow(objref,UserMonitorHome.class);
} catch (Exception NamingException) {
NamingException.printStackTrace();
}
try {
remoteUMon = homeUMon.create();
} catch (Exception NamingException) {
NamingException.printStackTrace();
}
This application is working in a Unix Server but when I try to run it in my pc (localhost) in windows 2000 with Weblogic 5.1 doesn't work.

[George Brown]

"crisabanades",
The Java Ranch has thousands of visitors every week, many with surprisingly similar names. To avoid confusion we have a naming convention, described at http://www.javaranch.com/name.jsp . We require names to have at least two words, separated by a space, and strongly recommend that you use your full real name. Please log in with a new name which meets the requirements.
Thanks.

[Praveen Sangolli]

Is there a solution for the above issue.?

I have a similar kind of issue

Weblogic 10 is throwing a null pointer exception.


<> <1297320838645> <BEA-101020> <[ServletContext@15537607[app:bes module:/dyn path:/dyn spec-version:null]] Servlet failed with Exception
java.lang.NullPointerException



This happens when i click the browser back button .

[Praveen Sangolli]

Thanks

Found the root cause