java.lang.IllegalArgumentException in session context
deepadatar.deepa.datar.yahoo.com May 14, 2008 6:07 PMI have a small application in seam which stores data in database
I have a entity bean Country.java session as CountryComponent.java and JSF as Country.xhtml
This is the exception thrown
Caused by java.lang.IllegalArgumentException with message: value of context variable is not an instance of the component bound to the context variable: countryComponent Country.java: ------------- @Entity @Name("country") @Scope(SESSION) @Table(name = "country") public class Country implements java.io.Serializable { private int countryId; private String countryName; private String createdBy; public Country() { } public Country(int countryId, String countryName, String createdBy) { this.countryId = countryId; this.countryName = countryName; this.createdBy = createdBy; } @Id @GeneratedValue(strategy=GenerationType.TABLE) @Column(name = "countryId") public int getCountryId() { return this.countryId; } public void setCountryId(int countryId) { this.countryId = countryId; } @Column(name = "countryName") public String getCountryName() { return this.countryName; } public void setCountryName(String countryName) { this.countryName = countryName; } @Column(name = "createdBy") public String getCreatedBy() { return this.createdBy; } public void setCreatedBy(String createdBy) { this.createdBy = createdBy; } } CountryComponent.java --------------------- @Stateless @Name("countryComponent") public class CountryComponent implements CountryLocal { @PersistenceContext private EntityManager em; @In private Country country; public String doSave() { country = new Country(); em.persist(country); return "Success"; } } CountryLocal.java ----------------- @Local public interface CountryLocal { public String doSave(); } Country.xhtml ------------- <h:form id="countryDetails"> <table> <tr> <td> <font face="tahoma" size="2">Country Name</font> </td> <td> <h:inputText value="#{country.countryName}"/> </td> </tr> <tr> <td> <font face="tahoma" size="2">Created By</font> </td> <td> <h:inputText value="#{country.createdBy}"/> </td> </tr> <tr> <td> <h:commandButton value="Save" action="#{countryComponent.doSave}"/> </td> </tr> </table> </h:form> Stacktrace: ----------- Exception during request processing: Caused by javax.servlet.ServletException with message: "value of context variable is not an instance of the component bound to the context variable: countryComponent" javax.faces.webapp.FacesServlet.service(FacesServlet.java:256) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:302) org.ajax4jsf.Filter.doFilter(Filter.java:175) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:147) org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:276) org.ajax4jsf.Filter.doFilter(Filter.java:175) org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433) org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580) org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) java.lang.Thread.run(Thread.java:595)Caused by java.lang.IllegalArgumentException with message: "value of context variable is not an instance of the component bound to the context variable: countryComponent" org.jboss.seam.Component.getInstance(Component.java:1885) org.jboss.seam.Component.getInstance(Component.java:1840) org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55) org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50) org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166) org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53) javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53) com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:64) org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44) org.jboss.el.parser.AstValue.getTarget(AstValue.java:34) org.jboss.el.parser.AstValue.invoke(AstValue.java:95) org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276) com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68) javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:77) com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:91) javax.faces.component.UICommand.broadcast(UICommand.java:383) org.ajax4jsf.component.AjaxViewRoot.processEvents(AjaxViewRoot.java:316) org.ajax4jsf.component.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:291) org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:248) org.ajax4jsf.component.AjaxViewRoot.processApplication(AjaxViewRoot.java:461) com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:97) com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251) com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117) javax.faces.webapp.FacesServlet.service(FacesServlet.java:244) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:302) org.ajax4jsf.Filter.doFilter(Filter.java:175) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:147) org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:276) org.ajax4jsf.Filter.doFilter(Filter.java:175) org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433) org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241) org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580) org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) java.lang.Thread.run(Thread.java:595)
Can anyone give any inputs?
Thanks