| JBOSS ClassCastException when accessing remote home interface [message #247896] |
Tue, 01 June 2004 09:29  |
Eclipse User |
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Originally posted by: gerhard.kainz.knowing.at
Hi,
I am writing a plugin for eclipse 3.0 (M8) , that needs access to JBOSS. I
have all the JBOSS jars as bootstrap entries and j2ee.jar in the runtime
classpath. A security manager is set to all permissions.
The problem is as follows:
Following code is called as part of a factory Class
public static OCSessionEJB getSessionBean() {
if (ocSession == null) {
try {
getInitialContext();
Object ref = context.lookup("OCSessionEJB");
Object object = PortableRemoteObject.narrow(ref,
OCSessionEJBHome.class);
OCSessionEJBHome home = (OCSessionEJBHome) object;
ocSession = home.create();
} catch (Exception e) {
System.err.println("MESSAGE:" + e.getMessage());
e.printStackTrace(System.err);}}
return ocSession;
}
private static void getInitialContext() throws NamingException {
if (context == null) {
if(System.getSecurityManager() == null) {System.setSecurityManager(new
RMISecurityManager());}
Hashtable connectionProperties = new Hashtable();
connectionProperties.put(Context.INITIAL_CONTEXT_FACTORY,
namingContextFactory);
connectionProperties.put(Context.PROVIDER_URL, providerURL);
context = new InitialContext(connectionProperties);}
}
I wrote a small application, that uses the plugin's viewer and fills it with
data from our jboss server. It works (including the above code). When I run
it as a plugin the initial context ist set (seems so), the context.lookup
works (ref != null) but PortableRemoteObject.narrow() throws a
ClassCastException.
Any ides are welcome
Gerhard a: Kainz
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| Re: JBOSS ClassCastException when accessing remote home interface [message #247940 is a reply to message #247896] |
Tue, 01 June 2004 10:46  |
| Eclipse User |
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Originally posted by: gerhard.kainz.knowing.at
Thanks to J. O Connor I found the following and it works:
private static void getInitialContext() throws NamingException {
if (context == null) {
// set security manager
// if(System.getSecurityManager() == null) {
// System.setSecurityManager(new RMISecurityManager());
// }
//
//
// Hashtable connectionProperties = new Hashtable();
// connectionProperties.put(Context.INITIAL_CONTEXT_FACTORY,
// namingContextFactory);
// connectionProperties.put(Context.PROVIDER_URL, providerURL);
// context = new InitialContext(connectionProperties);
Hashtable env = new Hashtable();
env.put("java.naming.factory.initial",
"org.jnp.interfaces.NamingContextFactory");
env.put("java.naming.factory.url.pkgs",
"org.jboss.naming:org.jnp.interfaces");
env.put("java.naming.provider.url", "jnp://localhost:1099");
env.put("java.naming.rmi.security.manager", "yes");
NamingContextFactory namingFactory = new
NamingContextFactory();
context = namingFactory.getInitialContext(env);
}
}
"gk" <gerhard.kainz@knowing.at> schrieb im Newsbeitrag
news:c9hvp5$k0c$1@eclipse.org...
> Hi,
>
> I am writing a plugin for eclipse 3.0 (M8) , that needs access to JBOSS. I
> have all the JBOSS jars as bootstrap entries and j2ee.jar in the runtime
> classpath. A security manager is set to all permissions.
>
> The problem is as follows:
>
> Following code is called as part of a factory Class
>
> public static OCSessionEJB getSessionBean() {
> if (ocSession == null) {
>
> try {
>
> getInitialContext();
>
> Object ref = context.lookup("OCSessionEJB");
>
> Object object = PortableRemoteObject.narrow(ref,
> OCSessionEJBHome.class);
>
> OCSessionEJBHome home = (OCSessionEJBHome) object;
>
> ocSession = home.create();
>
> } catch (Exception e) {
>
> System.err.println("MESSAGE:" + e.getMessage());
>
> e.printStackTrace(System.err);}}
>
> return ocSession;
>
> }
>
>
>
>
> private static void getInitialContext() throws NamingException {
>
> if (context == null) {
>
> if(System.getSecurityManager() == null) {System.setSecurityManager(new
> RMISecurityManager());}
>
> Hashtable connectionProperties = new Hashtable();
>
> connectionProperties.put(Context.INITIAL_CONTEXT_FACTORY,
>
> namingContextFactory);
>
> connectionProperties.put(Context.PROVIDER_URL, providerURL);
>
> context = new InitialContext(connectionProperties);}
>
> }
>
> I wrote a small application, that uses the plugin's viewer and fills it
with
> data from our jboss server. It works (including the above code). When I
run
> it as a plugin the initial context ist set (seems so), the context.lookup
> works (ref != null) but PortableRemoteObject.narrow() throws a
> ClassCastException.
>
> Any ides are welcome
>
> Gerhard a: Kainz
>
>
>
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