I have a J2EE running fine under the default compiler provided in JDeveloper, namely 1.3.1_02. I changed the compiler to 1.4.2_02 and things compiled fine.
But at run time get this error:-

"InsuranceHome_StatelessSessionHomeWrapper1.java:9: cannot access java.lang.Object
bad class file: D:jdk1.4.202jrelib
t.jar(java/lang/Object.class)

class file has wrong version 48.0, should be 47.0
Please remove or make sure it appears in the correct subdirectory of the classpath.


public class InsuranceHome_StatelessSessionHomeWrapper1 extends

com.evermind.server.ejb.RemoteStatelessSessionEJBHome implements com.XXXlink.xyz.ejb.InsuranceHome


^
Error compiling D:insuranceDevWorkspacesProjectsclasses: Syntax error in source



1 error
Oracle9iAS (9.0.3.0.0) Containers for J2EE initialized

javax.naming.NameNotFoundException: InsuranceEJB not found

at com.evermind.server.rmi.RMIContext.lookup(RMIContext.java:130)



at com.evermind.server.ApplicationContext.lookup(ApplicationContext.java:195)



at com.evermind.server.ApplicationContext.lookup(ApplicationContext.java:66)



at javax.naming.InitialContext.lookup(InitialContext.java:347)



at com.XXXlink.xyz.struts.DisplayInsurancePageInitAction.execute(DisplayInsurancePageInitAction.java:55)



at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)



at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)



at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)



at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)



at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)



at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)



at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:721)



at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:306)



at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:767)



at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:259)



at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:106)



at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:797)



at java.lang.Thread.run(Thread.java:534)



Process exited.