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EJB3 @Stateful generate error  RSS feed

 
Diogo Gonzaga
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When I use @Stateless EJB my application run correctly, but with @Stateful I get this error:

20:37:36,361 ERROR [STDERR] java.lang.ClassCastException: $Proxy169
20:37:36,362 ERROR [STDERR] at web.ejb3inaction.actionbazaar.client.PlaceOrderClient.doGet(PlaceOrderClient.java:25)
20:37:36,362 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
20:37:36,362 ERROR [STDERR] at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
20:37:36,362 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
20:37:36,362 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
20:37:36,362 ERROR [STDERR] at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
20:37:36,362 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
20:37:36,362 ERROR [STDERR] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
20:37:36,362 ERROR [STDERR] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
20:37:36,362 ERROR [STDERR] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
20:37:36,362 ERROR [STDERR] at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
20:37:36,362 ERROR [STDERR] at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
20:37:36,362 ERROR [STDERR] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
20:37:36,362 ERROR [STDERR] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
20:37:36,362 ERROR [STDERR] at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
20:37:36,362 ERROR [STDERR] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
20:37:36,362 ERROR [STDERR] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
20:37:36,363 ERROR [STDERR] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
20:37:36,363 ERROR [STDERR] at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
20:37:36,363 ERROR [STDERR] at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
20:37:36,363 ERROR [STDERR] at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
20:37:36,363 ERROR [STDERR] at java.lang.Thread.run(Thread.java:595)

Any idea?
[ December 12, 2008: Message edited by: Diogo Gonzaga ]
 
Reza Rahman
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Diogo,

Looks like you have a classpath issue. One possibility is that you have copied the same class into two jars (EJB-JAR and WAR) instead of making a jar reference to the same class? The EJB 3 in Action example code should show you how to setup EJB-JAR, WAR and EAR references correctly.

Regards,
Reza
 
Diogo Gonzaga
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Reza,

I'm using EJB3 in Action example in this case.
I do it. Now, just interfaces are the same classes in the jar and war packages and the problem persists.

I have no idea.
 
Diogo Gonzaga
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Reza,

I've been removed interfaces classes from war and now it works fine.
Thank you for your tip.

 
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