Phanor Coll [
https://community.jboss.org/people/pcoll] created the discussion
"EJB Stateless ERROR java.lang.NullPointerException"
To view the discussion, visit:
https://community.jboss.org/message/724361#724361
--------------------------------------------------------------
Im doing some basic test with managed beans and stateless ..Im using jbossAS 7.1
Here are my classes
*@ManagedBean(name="message")*
public class index {
@Inject
MyBean bean;
public String getMensaje(){
return "Netbeans + JbossAS 7.1 do rock! " + bean.hola();
}
}
*@Stateless*
public class MyBean {
public String hola(){
return "it's true!";
}
}
this is how I call the managedbean from a jsf
*<h:outputText value="#{**message**.mensaje}" />*
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
*I think this is strait forward, but I get this error*
10:23:26,950 SEVERE [javax.enterprise.resource.webcontainer.jsf.application]
(http--127.0.0.1-8080-1) Error Rendering View[/index.xhtml]: javax.el.ELException:
/index.xhtml @15,49 value="#{message.mensaje}": java.lang.NullPointerException
at
com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:114)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
[jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)
[jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIOutput.getValue(UIOutput.java:169)
[jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at
com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:205)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:355)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:164)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
[jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1764)
[jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1760)
[jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at
com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:402)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at
com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)
[jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)
[jbossweb-7.0.10.Final.jar:]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
[jbossweb-7.0.10.Final.jar:]
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)
[jbossweb-7.0.10.Final.jar:]
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
[jbossweb-7.0.10.Final.jar:]
at
org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:154)
[jboss-as-web-7.1.0.Final.jar:7.1.0.Final]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
[jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
[jbossweb-7.0.10.Final.jar:]
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
[jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)
[jbossweb-7.0.10.Final.jar:]
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)
[jbossweb-7.0.10.Final.jar:]
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671)
[jbossweb-7.0.10.Final.jar:]
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
[jbossweb-7.0.10.Final.jar:]
at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_26]
Caused by: java.lang.NullPointerException
at practica.elf.index.getMensaje(index.java:19) [classes:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_26]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[rt.jar:1.6.0_26]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[rt.jar:1.6.0_26]
at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_26]
at javax.el.BeanELResolver.getValue(BeanELResolver.java:302)
[jboss-el-api_2.2_spec-1.0.0.Final.jar:1.0.0.Final]
at
com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at
com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at org.apache.el.parser.AstValue.getValue(AstValue.java:169)
[jbossweb-7.0.10.Final.jar:]
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:189)
[jbossweb-7.0.10.Final.jar:]
at
com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
... 28 more
10:23:26,966 ERROR
[org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/practicaejb].[Faces
Servlet]] (http--127.0.0.1-8080-1) Servlet.service() for servlet Faces Servlet threw
exception: java.lang.NullPointerException
at practica.elf.index.getMensaje(index.java:19) [classes:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_26]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
[rt.jar:1.6.0_26]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[rt.jar:1.6.0_26]
at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_26]
at javax.el.BeanELResolver.getValue(BeanELResolver.java:302)
[jboss-el-api_2.2_spec-1.0.0.Final.jar:1.0.0.Final]
at
com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at
com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at org.apache.el.parser.AstValue.getValue(AstValue.java:169)
[jbossweb-7.0.10.Final.jar:]
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:189)
[jbossweb-7.0.10.Final.jar:]
at
com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
[jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)
[jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIOutput.getValue(UIOutput.java:169)
[jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at
com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:205)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:355)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:164)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
[jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1764)
[jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1760)
[jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at
com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:402)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at
com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
[jsf-impl-2.1.5-jbossorg-1.jar:2.1.5-SNAPSHOT]
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)
[jboss-jsf-api_2.1_spec-2.0.0.Final.jar:2.0.0.Final]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)
[jbossweb-7.0.10.Final.jar:]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
[jbossweb-7.0.10.Final.jar:]
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)
[jbossweb-7.0.10.Final.jar:]
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
[jbossweb-7.0.10.Final.jar:]
at
org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:154)
[jboss-as-web-7.1.0.Final.jar:7.1.0.Final]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
[jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
[jbossweb-7.0.10.Final.jar:]
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
[jbossweb-7.0.10.Final.jar:]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368)
[jbossweb-7.0.10.Final.jar:]
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)
[jbossweb-7.0.10.Final.jar:]
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671)
[jbossweb-7.0.10.Final.jar:]
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930)
[jbossweb-7.0.10.Final.jar:]
at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_26]
What Im I missing?
--------------------------------------------------------------
Reply to this message by going to Community
[
https://community.jboss.org/message/724361#724361]
Start a new discussion in EJB3 at Community
[
https://community.jboss.org/choose-container!input.jspa?contentType=1&...]