Workaround for EJB local invoke "Java.lang.ClassCastException: $Proxy cannot is cast to Com.tgb.ejb.UserManager" exception problem

EJB Local invocation: The Web client and the EJB server are deployed to the same jboss, and the clients and servers communicate through a single JVM.

When a Web client is called locally, it is necessary to refer to the EJB server-side packaged jar, without referencing the jndi.properties file under the jar and SRC under Jboss/client, in the following way:

<%@ page language= "java" import= "java.util.*,javax.naming.*,com.tgb.ejb.*" pageencoding= "Utf-8"%><%String Path = Request.getcontextpath (); String basepath = request.getscheme () + "://" + request.getservername () + ":" + request.getserverport () + path + "/";%>&L T;html>when the browser enters the URL address that the client publishes, JBoss reports the following exception:
    
 
13:02:30,924 ERROR [[JSP]] Servlet.service () for Servlet JSP threw exceptionjava.lang.ClassCastException: $Proxy 96 Cannot is cast to Com.tgb.ejb.UserManagerat Org.apache.jsp.index_jsp._jspservice (index_jsp.java:79) at Org.apache.jasper.runtime.HttpJspBase.service (httpjspbase.java:70) at Javax.servlet.http.HttpServlet.service ( httpservlet.java:803) at Org.apache.jasper.servlet.JspServletWrapper.service (jspservletwrapper.java:373) at Org.apache.jasper.servlet.JspServlet.serviceJspFile (jspservlet.java:336) at Org.apache.jasper.servlet.JspServlet.service (jspservlet.java:265) at Javax.servlet.http.HttpServlet.service ( httpservlet.java:803) at Org.apache.catalina.core.ApplicationFilterChain.internalDoFilter ( applicationfilterchain.java:290) at Org.apache.catalina.core.ApplicationFilterChain.doFilter ( applicationfilterchain.java:206) at Org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter ( replyheaderfilter.java:96) at Org.apache.catalina.core.ApplicationFilterChain.internalDoFilter ( Applicationfilterchain.java:235) at Org.apache.catalina.core.ApplicationFilterChain.doFilter (applicationfilterchain.java:206) at Org.apache.catalina.core.StandardWrapperValve.invoke (standardwrappervalve.java:230) at Org.apache.catalina.core.StandardContextValve.invoke (standardcontextvalve.java:175) at Org.jboss.web.tomcat.security.SecurityAssociationValve.invoke (securityassociationvalve.java:182) at Org.jboss.web.tomcat.security.JaccContextValve.invoke (jacccontextvalve.java:84) at Org.apache.catalina.core.StandardHostValve.invoke (standardhostvalve.java:127) at Org.apache.catalina.valves.ErrorReportValve.invoke (errorreportvalve.java:102) at Org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke (cachedconnectionvalve.java:157) at Org.apache.catalina.core.StandardEngineValve.invoke (standardenginevalve.java:109) at Org.apache.catalina.connector.CoyoteAdapter.service (coyoteadapter.java:262) at Org.apache.coyote.http11.Http11Processor.process (http11processor.java:844) at Org.apache.coyote.http11.http11protocol$http11Connectionhandler.process (http11protocol.java:583) at Org.apache.tomcat.util.net.jioendpoint$worker.run ( jioendpoint.java:446) at Java.lang.Thread.run (thread.java:619)
 Solution: Locate the Jboss-service.xml file under the Jboss-4.2.3.ga\server\default\deploy\jboss-web.deployer\meta-inf path of the JBoss server and <attribute name= "Usejbosswebloader" >false</attribute> false to True, restart JBoss, problem solved. 
       usejbosswebloader   
        Generally, this should be avoided because when the same classes and resources are available in different applications, There are conflicts between different JBoss applications:   Two war applications WarA, Warb below are com.tgb.User.class files;    
   
I hope that my explanation can help you to improve.
Workaround for EJB local invoke "Java.lang.ClassCastException: $Proxy cannot is cast to Com.tgb.ejb.UserManager" exception problem