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Not able to excute EJB ClassCastException
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Lave Kulshreshtha
Ranch Hand
Joined: Oct 21, 2007
Posts: 106
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I have created an EJB module and a web module. When I try to run EJB from a servlet I get ClassCastException. I do not know why? I am using intelliJ Idea (IDE) and JBoss 4.0.2 application server. I get ClassCastException When I try to narrow after lookup. I have seen many sites but i could not resolve this problem. Can some one help on this? Please find below the code details. jboss.xml ----------------------------------------------- <jboss> <enterprise-beans> <session> <ejb-name>Hello</ejb-name> <jndi-name>ejb/Hello</jndi-name> </session> <session> <ejb-name>TesterBean</ejb-name> <jndi-name>test/Tester</jndi-name> </session> </enterprise-beans> </jboss> ejb-jar.xml ----------------------------------------------- <enterprise-beans> <session> <ejb-name>Hello</ejb-name> <home>com.wiley.examples.HelloHome</home> <remote>com.wiley.examples.Hello</remote> <ejb-class>com.wiley.examples.HelloBean</ejb-class> <session-type>Stateless</session-type> <transaction-type>Container</transaction-type> </session> <session> <display-name>TesterBean</display-name> <ejb-name>TesterBean</ejb-name> <home>com.wiley.examples.TesterHome</home> <remote>com.wiley.examples.Tester</remote> <ejb-class>com.wiley.examples.TesterEJB</ejb-class> <session-type>Stateless</session-type> <transaction-type>Container</transaction-type> </session> jboss-web.xml ----------------------------------------------------- <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE jboss-web PUBLIC "-//JBoss//DTD Web Application 2.4//EN" "http://www.jboss.org/j2ee/dtd/jboss-web_4_0.dtd"> <jboss-web> <ejb-ref> <ejb-ref-name>ejb/HelloEjb</ejb-ref-name> <jndi-name>ejb/Hello</jndi-name> </ejb-ref> </jboss-web> web.xml ----------------------------------------------------- <ejb-ref> <ejb-ref-name>ejb/HelloEjb</ejb-ref-name> <ejb-ref-type>Session</ejb-ref-type> <home>com.wiley.examples.HelloHome</home> <remote>com.wiley.examples.Hello</remote> <ejb-link>Hello</ejb-link> </ejb-ref> code from servlet --------------------------------------------------- Properties env = new Properties(); env.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory"); env.put(Context.PROVIDER_URL, "localhost:1099"); env.put(Context.URL_PKG_PREFIXES,"org.jboss.naming rg.jnp.interfaces"); env.put("org.omg.CORBA.ORBInitialHost","localhost"); env.put("org.omg.CORBA.ORBInitialPort","3700"); Context context = new InitialContext(); Object object = context.lookup("java:comp/env/ejb/HelloEjb"); System.out.println(object); HelloHome helloHome = null; if (object != null) { // PortableRemoteObject.narrow(object, HelloHome.class); helloHome = (HelloHome)PortableRemoteObject.narrow(object, HelloHome.class); Hello hello = helloHome.create(); System.out.println(hello.hello()); } I am able to compile entire code but When i excute EJB's I get ClassCastException on PortableRemoteObject.narrow(object, HelloHome.class); Please help.
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SCJP 1.4, SCWCD 1.4, SCBCD 1.3, ITIL V3 Foundation Certification
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Lave Kulshreshtha
Ranch Hand
Joined: Oct 21, 2007
Posts: 106
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I am able to resolve this using galssfish server, but there was some problem with JBoss. -Lave
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subject: Not able to excute EJB ClassCastException
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