Thank you for your answer. Sure, the classloaders must be different. The first Webapp is a standalone Webapplication and the second (the one which makes the lookup) is inside an ear.
I added the System.outs. you want and I get the following output: >>> RolleDTO's classloader >>> [org.apache.geronimo.kernel.classloader.JarFileClassLoader >>> id=com.accumio.ae/ear/1.0/ear] >>> RolleDTO's from JNDI classloader >>> [org.apache.geronimo.kernel.classloader.JarFileClassLoader >>> id=com.accumio.ae.LieferantenVerwaltung/Webapp/1.0/car] Here is the geronimo-web.xml from the Webapplication which puts the RolleDTO to JNDI: <web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web-1.1"; xmlns:naming="http://geronimo.apache.org/xml/ns/naming-1.1";> <dep:environment xmlns:dep="http://geronimo.apache.org/xml/ns/deployment-1.1";> <dep:moduleId> <dep:groupId>com.accumio.ae.LieferantenVerwaltung</dep:groupId> <dep:artifactId>Webapp</dep:artifactId> <dep:version>1.0</dep:version> <dep:type>car</dep:type> </dep:moduleId> <dep:dependencies> <dep:dependency> <dep:groupId>com.accumio.ae</dep:groupId> <dep:artifactId>AE-Base</dep:artifactId> <dep:version>1.0</dep:version> <dep:type>jar</dep:type> </dep:dependency> <dep:dependency> <dep:groupId>com.accumio.ae</dep:groupId> <dep:artifactId>pushAEConnectionPool</dep:artifactId> </dep:dependency> <dep:dependency> <dep:groupId>com.accumio.ae</dep:groupId> <dep:artifactId>bev2DataSource</dep:artifactId> </dep:dependency> </dep:dependencies> <dep:hidden-classes> </dep:hidden-classes> <dep:non-overridable-classes /> </dep:environment> <context-root>/lieferantenverwaltung</context-root> <resource-ref> <ref-name>jdbc/pushAEConnectionPool</ref-name> <resource-link>pushAEConnectionPool</resource-link> </resource-ref> <resource-ref> <ref-name>jdbc/BEVPooledDS</ref-name> <resource-link>bev2DataSource</resource-link> </resource-ref> </web-app> The relevant dependency is <dep:dependency> <dep:groupId>com.accumio.ae</dep:groupId> <dep:artifactId>AE-Base</dep:artifactId> <dep:version>1.0</dep:version> <dep:type>jar</dep:type> </dep:dependency> And the deployment plan of the Webapplication which trys to lookup the RolleDTO Object: <web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web-1.1"; xmlns:naming="http://geronimo.apache.org/xml/ns/naming-1.1";> <dep:environment xmlns:dep="http://geronimo.apache.org/xml/ns/deployment-1.1";> <dep:moduleId> <dep:groupId>com.accumio.ae.JobTrigger</dep:groupId> <dep:artifactId>Webapp</dep:artifactId> <dep:version>1.0</dep:version> <dep:type>car</dep:type> </dep:moduleId> <dep:dependencies> <dep:dependency> <dep:groupId>com.accumio.ae</dep:groupId> <dep:artifactId>AE-Base</dep:artifactId> <dep:version>1.0</dep:version> <dep:type>jar</dep:type> </dep:dependency> <dep:dependency> <dep:groupId>com.accumio.ae</dep:groupId> <dep:artifactId>pushAEConnectionPool</dep:artifactId> </dep:dependency> </dep:dependencies> <dep:hidden-classes> </dep:hidden-classes> <dep:non-overridable-classes /> </dep:environment> <context-root>/pushaetrigger</context-root> <resource-ref> <ref-name>jdbc/pushAEConnectionPool</ref-name> <resource-link>pushAEConnectionPool</resource-link> </resource-ref> </web-app> Thanks a lot! Regards! Jochen > -----Ursprüngliche Nachricht----- > Von: [email protected] > Gesendet: 26.11.07 15:54:28 > An: [email protected] > Betreff: Re: ClassCastException while using the gloabl JNDI Context > > On Nov 26, 2007 3:33 PM, Jochen Zink <[EMAIL PROTECTED]> wrote: > > > InitialContext ic = new InitialContext(); > > Context context = (Context) ic.lookup("ger:"); > > RolleDTO rolle = (RolleDTO) context.lookup("myObject "); > > > > The Result is the follwoing ClassCastException. > > Could you do the following in your code so it gets easier to track it > down (writting it from the top off my head - sorry for typos): > > InitialContext ic = new InitialContext(); > Context context = (Context) ic.lookup("ger:"); > System.out.println(">>> RolleDTO's classloader" + > RolleDTO.class.getClassLoader()); > Object myObj = context.lookup("myObject "); > System.out.println(">>> RolleDTO from JNDI's classloader" + > myObj.getClass().getClassLoader()); > > They're surely different. Could you attach geronimo plans for the > webapp and the ear? > > Jacek > > -- > Jacek Laskowski > http://www.JacekLaskowski.pl > _____________________________________________________________________ Der WEB.DE SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! http://smartsurfer.web.de/?mc=100071&distributionid=000000000066
