App Server is Sun Java(TM) System Application Server Standard and Enterprise Edition 7 2004Q2 on Solaris 9

Can any one help me to solve this Issue
When accessing a Screen Iam getting this error

29/Nov/2004:11:10:39] SEVERE ( 4669): EJB5070: Exception creating stateless session bean : [ExceptionConverter: java.io.EOFException]
[29/Nov/2004:11:10:39] SEVERE ( 4669): EJB5017: Exception while running preinvoke : ejbName = [ReportsEngine]
[29/Nov/2004:11:10:39] SEVERE ( 4669):
javax.ejb.EJBException: nested exception is: javax.ejb.EJBException: nested exception is: javax.ejb.CreateException: Could not create stateless EJB: ExceptionConverter: java.io.EOFException
javax.ejb.EJBException: nested exception is: javax.ejb.CreateException: Could not create stateless EJB: ExceptionConverter: java.io.EOFException
javax.ejb.CreateException: Could not create stateless EJB: ExceptionConverter: java.io.EOFException
at com.sun.ejb.containers.StatelessSessionContainer.createStatelessEJB(StatelessSessionContainer.java:529)
at com.sun.ejb.containers.StatelessSessionContainer.access$000(StatelessSessionContainer.java:68)
at com.sun.ejb.containers.StatelessSessionContainer$SessionContextFactory.create(StatelessSessionContainer.java:735)
at com.sun.ejb.containers.util.pool.NonBlockingPool.getObject(NonBlockingPool.java:176)
at com.sun.ejb.containers.StatelessSessionContainer.getContext(StatelessSessionContainer.java:458)
at com.sun.ejb.containers.BaseContainer.preInvoke(BaseContainer.java:495)
at company.ejb.ReportsEngineWrapper_EJBObjectImpl.getFieldsSetupForSource(ReportsEngineWrapper_EJBObjectImpl.java:118)
at company.ejb._ReportsEngineRemote_Stub.getFieldsSetupForSource(Unknown Source)
at company.dynamicreports.beans.ReportFieldSetupBeanList.loadFieldSetupForReportOrGroup(ReportFieldSetupBeanList.java:172)
at _jasper._dynamicreports._jsp._ReportFieldSetupJunction_jsp._jspService(_ReportFieldSetupJunction_jsp.java:202)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.StandardWrapperValve.invokeServletService(StandardWrapperValve.java:720)
at org.apache.catalina.core.StandardWrapperValve.access$000(StandardWrapperValve.java:118)
at org.apache.catalina.core.StandardWrapperValve$1.run(StandardWrapperValve.java:278)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:274)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:212)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:203)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
at com.iplanet.ias.web.connector.nsapi.NSAPIProcessor.process(NSAPIProcessor.java:158)
at com.iplanet.ias.web.WebContainer.service(WebContainer.java:850)
javax.ejb.EJBException: nested exception is: javax.ejb.CreateException: Could not create stateless EJB: ExceptionConverter: java.io.EOFException
at com.sun.ejb.containers.StatelessSessionContainer$SessionContextFactory.create(StatelessSessionContainer.java:737)
at com.sun.ejb.containers.util.pool.NonBlockingPool.getObject(NonBlockingPool.java:176)
at com.sun.ejb.containers.StatelessSessionContainer.getContext(StatelessSessionContainer.java:458)
at com.sun.ejb.containers.BaseContainer.preInvoke(BaseContainer.java:495)
at company.ejb.ReportsEngineWrapper_EJBObjectImpl.getFieldsSetupForSource(ReportsEngineWrapper_EJBObjectImpl.java:118)
at company.ejb._ReportsEngineRemote_Stub.getFieldsSetupForSource(Unknown Source)
at company.dynamicreports.beans.ReportFieldSetupBeanList.loadFieldSetupForReportOrGroup(ReportFieldSetupBeanList.java:172)