So I'm very new to JSF, I just started using it a few days ago and I'm trying to learn off of youtube tutorials and a couple of books. But I can't tell why this isn't working. Here's my code:
<h:form styleClass="formStyle">
<h1>Log In</h1>
<fieldset id="inputs">
<h:inputText id="username" type="text" value="#{redirectBean.name}">
</h:inputText>
<h:inputSecret id="password" type="password" value="#{redirectBean.password}">
</h:inputSecret>
</fieldset>
<fieldset id="actions">
<h:button type="submit" styleClass="test" value="Log in" outcome="#{redirectBean.login}">
</h:button>
</fieldset>
</h:form>
redirectBean.java is simply a class containing 3 private strings (login="welcome", name and password) and their getters/setters.
Upon clicking the Login button I am redirected to welcome.xhtml but there are no changes made to redirectBean.name or redirectBean.password.
Any thoughts? What am I missing?
Edit: so BalusC has explained that I need to use h:commandButton instead, but that wasn't redirecting me. After some back-and-forth trying to figure out why, this is the server log I'm currently getting (It's redirecting me now with the command button but still not passing the value to the bean. I also got something about RI and MyFaces conflicting, but some tinkering in the classpath seems to have fixed that):
SEVERE: ContainerBase.addChild: start:
org.apache.catalina.LifecycleException:
java.lang.IllegalArgumentException: java.lang.ClassNotFoundException:
org.apache.myfaces.webapp.StartupServletContextListener at
org.apache.catalina.core.StandardContext.start(StandardContext.java:5332)
at com.sun.enterprise.web.WebModule.start(WebModule.java:498) at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:917)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:901)
at
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:733)
at
com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:2018)
at
com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1669)
at
com.sun.enterprise.web.WebApplication.start(WebApplication.java:109)
at org.glassfish.internal.data.EngineRef.start(EngineRef.java:130)
at org.glassfish.internal.data.ModuleInfo.start(ModuleInfo.java:269)
at
org.glassfish.internal.data.ApplicationInfo.start(ApplicationInfo.java:301)
at
com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:461)
at
com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:240)
at
org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:389)
at
com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:348)
at
com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:363)
at
com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1085)
at
com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:95)
at
com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1291)
at
com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1259)
at
com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:461)
at
com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:212)
at
com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)
at
com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:117)
at
com.sun.enterprise.v3.services.impl.ContainerMapper$Hk2DispatcherCallable.call(ContainerMapper.java:354)
at
com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at
com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
at
com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
at
com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
at
com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
at
com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at
com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at
com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at
com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71) at
com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at
com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:662) Caused by:
java.lang.IllegalArgumentException: java.lang.ClassNotFoundException:
org.apache.myfaces.webapp.StartupServletContextListener at
org.apache.catalina.core.StandardContext.addListener(StandardContext.java:2743)
at
org.apache.catalina.core.StandardContext.addApplicationListener(StandardContext.java:1966)
at
com.sun.enterprise.web.TomcatDeploymentConfig.configureApplicationListener(TomcatDeploymentConfig.java:235)
at
com.sun.enterprise.web.TomcatDeploymentConfig.configureWebModule(TomcatDeploymentConfig.java:94)
at
com.sun.enterprise.web.WebModuleContextConfig.start(WebModuleContextConfig.java:274)
at
com.sun.enterprise.web.WebModuleContextConfig.lifecycleEvent(WebModuleContextConfig.java:172)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:149)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:5329)
... 39 more Caused by: java.lang.ClassNotFoundException:
org.apache.myfaces.webapp.StartupServletContextListener at
org.glassfish.web.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1509)
at
org.glassfish.web.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1359)
at
org.apache.catalina.core.StandardContext.loadListener(StandardContext.java:4806)
at com.sun.enterprise.web.WebModule.loadListener(WebModule.java:1599)
at
org.apache.catalina.core.StandardContext.addListener(StandardContext.java:2740)
... 46 more
WARNING: java.lang.IllegalStateException: ContainerBase.addChild:
start: org.apache.catalina.LifecycleException:
java.lang.IllegalArgumentException: java.lang.ClassNotFoundException:
org.apache.myfaces.webapp.StartupServletContextListener
java.lang.IllegalStateException: ContainerBase.addChild: start:
org.apache.catalina.LifecycleException:
java.lang.IllegalArgumentException: java.lang.ClassNotFoundException:
org.apache.myfaces.webapp.StartupServletContextListener at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:921)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:901)
at
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:733)
at
com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:2018)
at
com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1669)
at
com.sun.enterprise.web.WebApplication.start(WebApplication.java:109)
at org.glassfish.internal.data.EngineRef.start(EngineRef.java:130)
at org.glassfish.internal.data.ModuleInfo.start(ModuleInfo.java:269)
at
org.glassfish.internal.data.ApplicationInfo.start(ApplicationInfo.java:301)
at
com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:461)
at
com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:240)
at
org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:389)
at
com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:348)
at
com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:363)
at
com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1085)
at
com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:95)
at
com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1291)
at
com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1259)
at
com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:461)
at
com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:212)
at
com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)
at
com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:117)
at
com.sun.enterprise.v3.services.impl.ContainerMapper$Hk2DispatcherCallable.call(ContainerMapper.java:354)
at
com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at
com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
at
com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
at
com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
at
com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
at
com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at
com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at
com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at
com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71) at
com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at
com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:662)
SEVERE: Exception while invoking class
com.sun.enterprise.web.WebApplication start method
java.lang.Exception: java.lang.IllegalStateException:
ContainerBase.addChild: start: org.apache.catalina.LifecycleException:
java.lang.IllegalArgumentException: java.lang.ClassNotFoundException:
org.apache.myfaces.webapp.StartupServletContextListener at
com.sun.enterprise.web.WebApplication.start(WebApplication.java:138)
at org.glassfish.internal.data.EngineRef.start(EngineRef.java:130)
at org.glassfish.internal.data.ModuleInfo.start(ModuleInfo.java:269)
at
org.glassfish.internal.data.ApplicationInfo.start(ApplicationInfo.java:301)
at
com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:461)
at
com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:240)
at
org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:389)
at
com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:348)
at
com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:363)
at
com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1085)
at
com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:95)
at
com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1291)
at
com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1259)
at
com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:461)
at
com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:212)
at
com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)
at
com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:117)
at
com.sun.enterprise.v3.services.impl.ContainerMapper$Hk2DispatcherCallable.call(ContainerMapper.java:354)
at
com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at
com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
at
com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
at
com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
at
com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
at
com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at
com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at
com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at
com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71) at
com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at
com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:662)
SEVERE: Exception while loading the app SEVERE: Exception while
loading the app : java.lang.IllegalStateException:
ContainerBase.addChild: start: org.apache.catalina.LifecycleException:
java.lang.IllegalArgumentException: java.lang.ClassNotFoundException:
org.apache.myfaces.webapp.StartupServletContextListener
You need to use <h:commandButton>, not <h:button>. The <h:button> merely sends a GET request, while the <h:commandButton> submits the form by POST.
<h:commandButton styleClass="test" value="Log in" action="#{redirectBean.login}" />
with
public String login() {
// Do your business job.
return "welcome";
}
See also:
Our JSF tag wiki page - contains some Hello World examples and good tutorial links
Related
I try to recover the constants in my xhtml jsf in using Omnifaces library, but when I run my project I get:
Cannot find type 'fr.epsi.utils.ConstantsPages' in classpath.
Here is my xhtml page :
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:o="http://omnifaces.org/ui">
<o:importConstants type="fr.epsi.utils.ConstantsPages" />
<h:head>
<title>Acceuil</title>
<h:outputStylesheet name="css/style.css"/>
</h:head>
<h:body>
<h:panelGrid columns="3" cellpadding="10">
<h:link value="Home" outcome="#{ConstantsPages.LOGIN_PAGE}" />
</h:panelGrid>
<h:body>
</html>
And my ConstantsPages class :
package fr.epsi.utils;
public class ConstantsPages {
/* GENERAL */
public static final String LOGIN_PAGE = "/General/login";
public static final String LOGIN_CLIENT_PAGE = "/General/loginClient";
public static final String LOGIN_TECHNICIEN_PAGE = "/General/loginTechnicien";
public static final String ACCUEIL_PAGE = "/General/accueil";
}
And the stack trace :
java.lang.IllegalArgumentException: Cannot find type 'fr.epsi.utils.ConstantsPages' in classpath.
at org.omnifaces.taghandler.ImportConstants.toClass(ImportConstants.java:173)
at org.omnifaces.taghandler.ImportConstants.collectConstants(ImportConstants.java:134)
at org.omnifaces.taghandler.ImportConstants.apply(ImportConstants.java:117)
at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:98)
at com.sun.faces.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:93)
at javax.faces.view.facelets.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:98)
at com.sun.faces.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:86)
at com.sun.faces.facelets.impl.DefaultFacelet.apply(DefaultFacelet.java:152)
at com.sun.faces.application.view.FaceletViewHandlingStrategy.buildView(FaceletViewHandlingStrategy.java:774)
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:100)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:229)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.ClassNotFoundException: fr.epsi.utils.ConstantsPages
at com.sun.enterprise.loader.ASURLClassLoader.findClassData(ASURLClassLoader.java:808)
at com.sun.enterprise.loader.ASURLClassLoader.findClass(ASURLClassLoader.java:696)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:186)
at org.omnifaces.taghandler.ImportConstants.toClass(ImportConstants.java:156)
... 36 more
Please help me!
You need to make sure that the class file is properly compiled and placed in webapp's runtime classpath. E.g. as /WEB-INF/classes/fr/epsi/utils/ConstantsPages.class inside the WAR.
This exception says that it is not. There's really no other cause. If you're using an IDE, make sure that the class file is inside Java source folder of the web project and that you've cleaned, rebuilt and redeployed the project and restarted the server.
actualy my question is how to display a collection in my view :
ex:
<h:outputText value="#{item.machineCollection.get(0).id != null ? item.machineCollection.get(0).id : ''}"/>
even after testing my code if the result is null i got this error
Array index out of range: 0
java.lang.ArrayIndexOutOfBoundsException: Array index out of range: 0
at java.util.Vector.get(Vector.java:694) at
org.eclipse.persistence.indirection.IndirectList.get(IndirectList.java:401)
at sun.reflect.GeneratedMethodAccessor194.invoke(Unknown Source) at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597) at
javax.el.BeanELResolver.invokeMethod(BeanELResolver.java:779) at
javax.el.BeanELResolver.invoke(BeanELResolver.java:528) at
javax.el.CompositeELResolver.invoke(CompositeELResolver.java:257) at
com.sun.el.parser.AstValue.getValue(AstValue.java:134) at
com.sun.el.parser.AstValue.getValue(AstValue.java:183) at
com.sun.el.parser.AstNotEqual.getValue(AstNotEqual.java:58) at
com.sun.el.parser.AstChoice.getValue(AstChoice.java:64) at
com.sun.el.parser.AstDeferredExpression.getValue(AstDeferredExpression.java:63)
at
com.sun.el.parser.AstCompositeExpression.getValue(AstCompositeExpression.java:68)
at
com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:224)
at
org.jboss.weld.el.WeldValueExpression.getValue(WeldValueExpression.java:50)
at
com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
at
javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
at
javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)
at javax.faces.component.UIOutput.getValue(UIOutput.java:169) at
com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:205)
at
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:355)
at
com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:164)
at
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1764)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1760)
at
org.primefaces.component.datatable.DataTableRenderer.encodeRegularCell(DataTableRenderer.java:741)
at
org.primefaces.component.datatable.DataTableRenderer.encodeRow(DataTableRenderer.java:693)
at
org.primefaces.component.datatable.DataTableRenderer.encodeTbody(DataTableRenderer.java:601)
at
org.primefaces.component.datatable.DataTableRenderer.encodeRegularTable(DataTableRenderer.java:220)
at
org.primefaces.component.datatable.DataTableRenderer.encodeMarkup(DataTableRenderer.java:192)
at
org.primefaces.component.datatable.DataTableRenderer.encodeEnd(DataTableRenderer.java:74)
at
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
at
org.primefaces.renderkit.CoreRenderer.renderChild(CoreRenderer.java:59)
at
org.primefaces.renderkit.CoreRenderer.renderChildren(CoreRenderer.java:43)
at
org.primefaces.component.panel.PanelRenderer.encodeContent(PanelRenderer.java:198)
at
org.primefaces.component.panel.PanelRenderer.encodeMarkup(PanelRenderer.java:115)
at
org.primefaces.component.panel.PanelRenderer.encodeEnd(PanelRenderer.java:55)
at
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1764)
at javax.faces.render.Renderer.encodeChildren(Renderer.java:168) at
javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845)
at
org.primefaces.renderkit.CoreRenderer.renderChild(CoreRenderer.java:55)
at
org.primefaces.renderkit.CoreRenderer.renderChildren(CoreRenderer.java:43)
at
org.primefaces.component.layout.LayoutUnitRenderer.encodeEnd(LayoutUnitRenderer.java:51)
at
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1764)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1760)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1760)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1760)
at
com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:402)
at
com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
at
javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:288)
at
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594) at
org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at
org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at
org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at
com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
at
com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at
com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860)
at
com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757)
at
com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056)
at
com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:229)
at
com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at
com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at
com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at
com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71) at
com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at
com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:680)
if someone have a solution urgently pleas and thanks
The problem is that you have
item.machineCollection.get(0).id
If you have an empty collection, item.machineCollection.get(0) will not work.
In primeface datatable you can use the var attribute. So if you add var="row" you can do
<p:datatable var="row" value="#{item.machineCollection}" >
<p:column>
<f:facet name="header">
<h:outputText value="Id" />
</f:facet>
<h:outputText value="#{row.id}"/>
</p:column>
....
</p:datatable>
Use not empty operator:
<h:outputText value="#{not empty item.machineCollection ? item.machineCollection.get(0).id : ''}
or write custom JSF function, as described in this topic:
How to create a custom EL function to invoke a static method?
I have a problem when I try Override the getAsObject function
#FacesConverter("countryConverter")
public class CountryConverter implements Converter {
#EJB private CountryService countryService;
#Override
public Object getAsObject(FacesContext context, UIComponent arg1, String arg2){
Country country = countryService.findByName(arg2);
return country;
}
}
SO when I load my combobox in every post back
<p:selectOneMenu value="#{registerController.selectedCountry}"
converter="countryConverter">
<f:selectItems value="#{registerController.countries}" var="country"
itemLabel="#{country.name}" itemValue="#{country}" />
</p:selectOneMenu>
I got a nullPointer Exception in the findbyName line!, I check the arg2 paramater and it carrys a valid value, Also I test the service function and also it works fine... Outside the CountryConverter class.
The error that I got is the follow, as I described in the getAsObject function line
SEVERE: java.lang.NullPointerException
at com.garagesalelive.controllers.converter.CountryConverter.getAsObject(CountryConverter.java:29)
at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:171)
at com.sun.faces.renderkit.html_basic.MenuRenderer.convertSelectOneValue(MenuRenderer.java:202)
at com.sun.faces.renderkit.html_basic.MenuRenderer.getConvertedValue(MenuRenderer.java:319)
at org.primefaces.component.selectonemenu.SelectOneMenuRenderer.getConvertedValue(SelectOneMenuRenderer.java:58)
at javax.faces.component.UIInput.getConvertedValue(UIInput.java:1030)
at javax.faces.component.UIInput.validate(UIInput.java:960)
at javax.faces.component.UIInput.executeValidate(UIInput.java:1233)
at javax.faces.component.UIInput.processValidators(UIInput.java:698)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
at org.primefaces.component.dialog.Dialog.processValidators(Dialog.java:378)
at javax.faces.component.UIForm.processValidators(UIForm.java:253)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1172)
at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1542)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:79)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:722)
SEVERE: at com.garagesalelive.controllers.converter.CountryConverter.getAsObject(CountryConverter.java:29)
SEVERE: at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:171)
SEVERE: at com.sun.faces.renderkit.html_basic.MenuRenderer.convertSelectOneValue(MenuRenderer.java:202)
SEVERE: at com.sun.faces.renderkit.html_basic.MenuRenderer.getConvertedValue(MenuRenderer.java:319)
SEVERE: at org.primefaces.component.selectonemenu.SelectOneMenuRenderer.getConvertedValue(SelectOneMenuRenderer.java:58)
SEVERE: at javax.faces.component.UIInput.getConvertedValue(UIInput.java:1030)
SEVERE: at javax.faces.component.UIInput.validate(UIInput.java:960)
SEVERE: at javax.faces.component.UIInput.executeValidate(UIInput.java:1233)
SEVERE: at javax.faces.component.UIInput.processValidators(UIInput.java:698)
SEVERE: at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
SEVERE: at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
SEVERE: at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
SEVERE: at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
SEVERE: at org.primefaces.component.dialog.Dialog.processValidators(Dialog.java:378)
SEVERE: at javax.faces.component.UIForm.processValidators(UIForm.java:253)
SEVERE: at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
SEVERE: at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
SEVERE: at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1172)
SEVERE: at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
SEVERE: at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
SEVERE: at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
SEVERE: at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
SEVERE: at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1542)
SEVERE: at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343)
SEVERE: at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
SEVERE: at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:79)
SEVERE: at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
SEVERE: at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
SEVERE: at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
SEVERE: at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
SEVERE: at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
SEVERE: at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
SEVERE: at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
SEVERE: at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
SEVERE: at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
SEVERE: at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
SEVERE: at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
SEVERE: at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
SEVERE: at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
SEVERE: at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
SEVERE: at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
SEVERE: at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
SEVERE: at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
SEVERE: at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
SEVERE: at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
SEVERE: at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
SEVERE: at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
SEVERE: at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
SEVERE: at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
SEVERE: at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
SEVERE: at java.lang.Thread.run(Thread.java:722)
I think your countryService is null. May be it is an injection problem.
Try this
#ManagedBean
#RequestScoped
#FacesConverter("countryConverter")
public class CountryConverter implements Converter {...
#EJB will not work on beans not managed by container. As per my understanding it works only with JSF Managed Beans , other EJB's and servlets.
If you are also using CDI library then you can try ,
#Inject private CountryService countryService;
or otherwise do a lookup,
InitialContext ctx = new InitialContext();
CountryService countryService =
(CountryService)ctx.lookup("ejb/countryService");
Your JNDI name will depend on your container or will be value of mappedBy attribute in your EJB if that is supported by your container and is specified by you on EJB.
by calling ManagedBean through FacesContext:
context.getApplication().getELResolver().getValue(context.getELContext(), null, "nameOfManagedBean");
A really simple question, but one i can not get worked out,
My xhtml page have
<p:commandButton action="#{NaviagationBean.buttonToUploadText}" value="Submit" icon ="ui-icon-arrowstop-1-n"/>
and i want to call code from my NavigationBean.java stored in richard.fileupload to call this code :
public String buttonToUploadText() {
System.out.println("buttonToUploadText invoked");
return "/upload/uploadText.xhtml";
}
basically what action in my xhtml do you i need to call ? to call this ?
as the code atm shows up this error :
WARNING: #{NavigationBean.buttonToUploadText}: javax.el.PropertyNotFoundException: /GUI/index.xhtml #61,130 action="#{NavigationBean.buttonToUploadText}": Target Unreachable, identifier 'NavigationBean' resolved to null
javax.faces.FacesException: #{NavigationBean.buttonToUploadText}: javax.el.PropertyNotFoundException: /GUI/index.xhtml #61,130 action="#{NavigationBean.buttonToUploadText}": Target Unreachable, identifier 'NavigationBean' resolved to null
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:118)
at javax.faces.component.UICommand.broadcast(UICommand.java:315)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:79)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:229)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:722)
Caused by: javax.faces.el.EvaluationException: javax.el.PropertyNotFoundException: /GUI/index.xhtml #61,130 action="#{NavigationBean.buttonToUploadText}": Target Unreachable, identifier 'NavigationBean' resolved to null
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:95)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
... 36 more
Caused by: javax.el.PropertyNotFoundException: /GUI/index.xhtml #61,130 action="#{NavigationBean.buttonToUploadText}": Target Unreachable, identifier 'NavigationBean' resolved to null
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:107)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)
... 37 more
EDIT
it works fine when i do :
<p:commandButton action="#{userBean.buttonToUploadText}" value="Submit" icon ="ui-icon-arrowstop-1-n"/>
with the code in UserBean.java
the stack trace is :
WARNING: #{NavigationBean.buttonToUploadText}: javax.el.PropertyNotFoundException: /GUI/index.xhtml #61,130 action="#{NavigationBean.buttonToUploadText}": Target Unreachable, identifier 'NavigationBean' resolved to null
javax.faces.FacesException: #{NavigationBean.buttonToUploadText}: javax.el.PropertyNotFoundException: /GUI/index.xhtml #61,130 action="#{NavigationBean.buttonToUploadText}": Target Unreachable, identifier 'NavigationBean' resolved to null
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:118)
at javax.faces.component.UICommand.broadcast(UICommand.java:315)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:79)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:161)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:229)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:722)
Caused by: javax.faces.el.EvaluationException: javax.el.PropertyNotFoundException: /GUI/index.xhtml #61,130 action="#{NavigationBean.buttonToUploadText}": Target Unreachable, identifier 'NavigationBean' resolved to null
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:95)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
... 36 more
Caused by: javax.el.PropertyNotFoundException: /GUI/index.xhtml #61,130 action="#{NavigationBean.buttonToUploadText}": Target Unreachable, identifier 'NavigationBean' resolved to null
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:107)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88)
... 37 more
EDIT 2:
<p:commandButton action="#{NaviagationBean.buttonToUploadText()}" value="Submit" icon ="ui-icon-arrowstop-1-n" ajax="False"/>
gives me the same stacktrace but now takes me to a page where javax.el.PropertyNotFoundException: /GUI/index.xhtml #61,146 action="#{NaviagationBean.buttonToUploadText()}": Target Unreachable, identifier 'NaviagationBean' resolved to null
The message Target Unreachable, identifier 'NavigationBean' resolved to null means that JSF framework can't find your managed bean. Make sure you have written your bean as follows:
#ManagedBean(name="NavigationBean")
#RequestScope
public class NavigationBean {
public NavigationBean() {
}
public String buttonToUploadText() {
System.out.println("buttonToUploadText invoked");
return "/upload/uploadText.xhtml";
}
//other methods...
}
Or if you use CDI
#Named("NavigationBean")
#RequestScope
public class NavigationBean {
//...
}
Another solution would be to use navigationBean instead of NavigationBean in EL:
<p:commandButton action="#{navigationBean.buttonToUploadText}" value="Submit"
icon ="ui-icon-arrowstop-1-n" />
fellow Java warriors!
I have this managed bean to handle the Rede (Network) entity related operations called RedesBean (NetworksBean). I have three pages to insert a new network: redes/nova.xhtml (new.xhtml), which is basically a series of input fields to insert the Network properties and a commandButton which invokes a cadastraNova() (createNew()) method which validates the input and calculates some values. The cadastraNova() method then returns to another page, redes/confirma.xhtml (confirm.xhtml) which shows the value of each property and the calculated values, asks for user confirmation and then invokes another method, cadastraRede() (createNetwork()) to persist the Network to database via JPA.
When I use #RequestScoped, the values are not preserved between the second and third views. When I use #SessionScoped, the values are preserved, but I think #SessionScoped-ing this is a bit too much. So, after a bit of Googling, I found this #ViewScoped annotation which I think fits perfectly to my case. But here's the issue: after I click the commandButton in the first view (redes/nova.xhtml), I get a NullPointerExcetption, caused by a EvaluationException. The cadastraNova() method is invoked, but it fails to evaluate the bean property values. The relevant code is posted below:
RedesBean.java
package br.cefetmg.ccc.gerir.web;
// suppressed imports
/**
* Bean to manage network and subnetwork views
* #author Arthur Alkmim
*
*/
#ManagedBean(name="redes")
#ViewScoped
public class RedesBean implements Serializable{
#EJB
transient RedeDAO redeDAO;
private static final Logger logger = Logger.getLogger("br.cefetmg.ccc.gerir.web.RedesBean");
// attributes, suppressed
// getters and setters, suppressed
// the "broken" method
public String cadastraNova(){
logger.info("Method cadastraNova() successfully invoked");
// verifica se a rede não já existe
if(redeDAO.buscaPorId(ipBase) != null){
FacesContext.getCurrentInstance().addMessage("Rede já existente", new FacesMessage("Já existe uma rede com esse IP"));
return FacesContext.getCurrentInstance().getViewRoot().getViewId();
}
calculaAtributos();
// verifica se o range de lease é válido
if(!validaRange())
// volta para a página de cadastro
return FacesContext.getCurrentInstance().getViewRoot().getViewId();
return "/redes/confirma";
}
// other suppressed methods
}
redes/nova.xhtml
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ccc="http://java.sun.com/jsf/composite/compz">
<ui:composition template="/resources/estilo/template.xhtml">
<f:loadBundle var="msg" basename="br.cefetmg.ccc.gerir.web.AppResources"/>
<ui:define name="title">Nova rede</ui:define>
<ui:define name="content">
<h:form id="form">
<h3>Principal</h3>
<h:panelGrid columns="2" id="principal">
<h:outputText value="Nome da rede" />
<h:inputText value="#{redes.nome}" id="nome" />
<h:outputText value="IP" />
<h:panelGroup id="ip">
<ccc:inputOneIP ip="#{redes.ipBase}" id="ipBase" />
/
<h:inputText value="#{redes.cidr}" size="2" id="cidr" validatorMessage="O CIDR deve estar entre 0 e 32">
<f:validateLongRange minimum="0" maximum="32"/>
</h:inputText>
</h:panelGroup>
</h:panelGrid>
<h3>Servidores</h3>
<h:panelGrid columns="2">
<h:outputText value="Router" />
<ccc:inputManyIP ip="#{redes.routers}" id="routers" />
<h:outputText value="DNS" />
<ccc:inputManyIP ip="#{redes.dns}" id="dns" />
<h:outputText value="Netbios" />
<ccc:inputManyIP ip="#{redes.netbios}" id="netbios" />
</h:panelGrid>
<h3>Lease</h3>
<h:panelGrid columns="2">
<h:outputText value="Tempo default" />
<h:inputText value="#{redes.leaseDefault}" id="leaseDefault">
<f:validateLongRange minimum="0" />
</h:inputText>
<h:outputText value="Tempo máximo" />
<h:inputText value="#{redes.leaseMax}" id="leaseMax">
<f:validateLongRange minimum="0" />
</h:inputText>
<h:outputText value="Início da faixa" />
<ccc:inputOneIP ip="#{redes.rangeMin}" id="rangeMin" />
<h:outputText value="Fim da faixa" />
<ccc:inputOneIP ip="#{redes.rangeMax}" id="rangeMax" />
</h:panelGrid>
<h:commandButton action="#{redes.cadastraNova}" value="Cadastra"/>
</h:form>
</ui:define>
</ui:composition>
</html>
redes/confirma.xhtml
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ccc="http://java.sun.com/jsf/composite/compz">
<ui:composition template="/resources/estilo/template.xhtml">
<f:loadBundle var="msg" basename="br.cefetmg.ccc.gerir.web.AppResources"/>
<ui:define name="title">Nova rede</ui:define>
<ui:define name="content">
<h:form id="form">
Nome: <h:outputText value="#{redes.nome}" /><br />
<ccc:outputOneIP ip="#{redes.ipBase}" />/<h:outputText value="#{redes.cidr}" />
(<ccc:outputOneIP ip="#{redes.ipMin}" /> a <ccc:outputOneIP ip="#{redes.ipMax}" />)<br />
Broadcast em: <ccc:outputOneIP ip="#{redes.broadcast}" /> <br />
Máscara de rede: <ccc:outputOneIP ip="#{redes.netmask}" /><br />
Roteadores: <ccc:outputManyIP ip="#{redes.routers}" /><br />
Servidores de DNS: <ccc:outputManyIP ip="#{redes.dns}"/><br />
Servidores netbios: <ccc:outputManyIP ip="#{redes.netbios}"/><br />
Tempo de lease padrão: <h:outputText value="#{redes.leaseDefault}"/><br />
Tempo de lease máximo: <h:outputText value="#{redes.leaseMax}"/><br />
Range do lease: <ccc:outputOneIP ip="#{redes.rangeMin}" /> a <ccc:outputOneIP ip="#{redes.rangeMax}" /><br />
<br />
Estes dados estão corretos?
<h:commandButton action="#{redes.cadastraRede}" value="Sim" />
<h:commandButton action="#{redes.cancelaCadastro}" value="Não" />
</h:form>
</ui:define>
</ui:composition>
</html>
The server log
[#|2010-10-27T13:55:07.713-0200|INFO|glassfish3.0.1|br.cefetmg.ccc.gerir.web.RedesBean|_ThreadID=31;_ThreadName=Thread-1;|Method cadastraNova() successfully invoked|#]
[#|2010-10-27T13:55:07.713-0200|SEVERE|glassfish3.0.1|javax.enterprise.resource.webcontainer.jsf.application|_ThreadID=31;_ThreadName=Thread-1;|java.lang.NullPointerException
javax.faces.el.EvaluationException: java.lang.NullPointerException
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:98)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:98)
at javax.faces.component.UICommand.broadcast(UICommand.java:311)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:781)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1246)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:308)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:325)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:226)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
at br.cefetmg.ccc.gerir.web.RedesBean.cadastraNova(RedesBean.java:231)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.el.parser.AstValue.invoke(AstValue.java:234)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:297)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:102)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:84)
... 32 more
|#]
[#|2010-10-27T13:55:07.714-0200|WARNING|glassfish3.0.1|javax.enterprise.resource.webcontainer.jsf.lifecycle|_ThreadID=31;_ThreadName=Thread-1;|#{redes.cadastraNova}: java.lang.NullPointerException
javax.faces.FacesException: #{redes.cadastraNova}: java.lang.NullPointerException
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:114)
at javax.faces.component.UICommand.broadcast(UICommand.java:311)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:781)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1246)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:308)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:325)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:226)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
at java.lang.Thread.run(Thread.java:662)
Caused by: javax.faces.el.EvaluationException: java.lang.NullPointerException
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:98)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:98)
... 31 more
Caused by: java.lang.NullPointerException
at br.cefetmg.ccc.gerir.web.RedesBean.cadastraNova(RedesBean.java:231)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.el.parser.AstValue.invoke(AstValue.java:234)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:297)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:102)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:84)
... 32 more
|#]
[#|2010-10-27T13:55:07.715-0200|WARNING|glassfish3.0.1|javax.enterprise.system.container.web.com.sun.enterprise.web|_ThreadID=31;_ThreadName=Thread-1;|StandardWrapperValve[Faces Servlet]: PWC1406: Servlet.service() for servlet Faces Servlet threw exception
javax.faces.el.EvaluationException: java.lang.NullPointerException
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:98)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:98)
at javax.faces.component.UICommand.broadcast(UICommand.java:311)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:781)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1246)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:308)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:325)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:226)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
at br.cefetmg.ccc.gerir.web.RedesBean.cadastraNova(RedesBean.java:231)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.el.parser.AstValue.invoke(AstValue.java:234)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:297)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:102)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:84)
... 32 more
|#]
[#|2010-10-27T13:55:07.715-0200|WARNING|glassfish3.0.1|javax.enterprise.system.container.web.com.sun.enterprise.web|_ThreadID=31;_ThreadName=http-thread-pool-8080-(2);|StandardWrapperValve[Faces Servlet]: PWC1406: Servlet.service() for servlet Faces Servlet threw exception
javax.faces.el.EvaluationException: java.lang.NullPointerException
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:98)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:98)
at javax.faces.component.UICommand.broadcast(UICommand.java:311)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:781)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1246)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:308)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:325)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:226)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
at br.cefetmg.ccc.gerir.web.RedesBean.cadastraNova(RedesBean.java:231)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.el.parser.AstValue.invoke(AstValue.java:234)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:297)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:102)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:84)
... 32 more
|#]
[#|2010-10-27T13:55:07.715-0200|WARNING|glassfish3.0.1|javax.enterprise.system.container.web.com.sun.enterprise.web|_ThreadID=31;_ThreadName=http-thread-pool-8080-(2);|StandardWrapperValve[Faces Servlet]: PWC1406: Servlet.service() for servlet Faces Servlet threw exception
javax.faces.el.EvaluationException: java.lang.NullPointerException
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:98)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:98)
at javax.faces.component.UICommand.broadcast(UICommand.java:311)
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:781)
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1246)
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:77)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:308)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1523)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:188)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:641)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:97)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:85)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:185)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:325)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:226)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:165)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:330)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:309)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
at br.cefetmg.ccc.gerir.web.RedesBean.cadastraNova(RedesBean.java:231)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.el.parser.AstValue.invoke(AstValue.java:234)
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:297)
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:102)
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:84)
... 32 more
|#]
So, as you guys can see, the method is really being invoked by the logger output in the log first line. The method fails when it evaluates a property which is probably not being updated. So, how to fix?
The only which can be null in the method snippet you've shown as far is redeDAO. Since it's marked transient I think that the server is configured to store views/sessions on disk immediately (by serialization) instead of being kept in memory all the time. Anything which is declared transient will be lost during serialization and JSF can't reinject it for you after deserialization.
I'd suggest to make the #EJB non-transient (just implement Serializable) and retry.
Kind of solved it. I changed from #ViewScoped to #ConversationScoped and used CDI annotations instead of JSF ones - that is, #Named and #Inject instead of #ManagedBean and #EJB.