[jboss-user] [EJB 3.0] - java.lan.ClassCastException when casting to remote bean inte
manemannen
do-not-reply at jboss.com
Wed Nov 19 14:47:03 EST 2008
I get a ClassCastException when trying to cast to a remote interface of stateful session bean (for some reason it works for the stateless ones..). To really pinpoint the problem I made the easiest project possible.
At the server application I have the following bean
@Stateful
| public class SimpleStatefulBean implements SimpleStatefulBeanRemote, SimpleStatefulBeanLocal {
|
| public SimpleStatefulBean() {
| }
|
| @Override
| public boolean isSimple() {
| return true;
| }
| }
The remote interface looks like this:
@Remote
| public interface SimpleStatefulBeanRemote {
| public boolean isSimple();
| }
|
On the client side I have a web application. It is running on the same JBoss AS but is not deployed in the EAR as the bean above. I created a servlet to access the bean.
In the doGet methods of the servlet..
| try {
| Properties p = new Properties();
| p.put("java.naming.factory.initial", "org.jnp.interfaces.NamingContextFactory");
| p.put("java.naming.factory.url.pkgs", "org.jboss.naming:org.jnp.interfaces");
| p.put("java.naming.provider.url", "localhost");
| Context ctx = new InitialContext(p);
| SimpleStatefulBeanRemote o = (SimpleStatefulBeanRemote) ctx.lookup("simpleserver/" + SimpleStatefulBean.class.getSimpleName() + "/remote");
| } catch (Exception e) {
| e.printStackTrace();
| }
Now it does not work to cast it to the remote interface! I get the following error:
19:53:27,164 ERROR [STDERR] java.lang.ClassCastException: $Proxy90 cannot be cast to com.test.SimpleStatefulBeanRemote
| 19:53:27,165 ERROR [STDERR] at com.test.SimpleTestServlet.doGet(SimpleTestServlet.java:38)
| 19:53:27,165 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
| 19:53:27,165 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
| 19:53:27,165 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
| 19:53:27,165 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| 19:53:27,165 ERROR [STDERR] at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
| 19:53:27,165 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
| 19:53:27,165 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| .
| .
| .
|
Can someone please help me??
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