Ao preencher o campo de busca para efetuar que possa executar o metodo de busca ocorreu o erro abiaxo:
Oque pode estar ocorrendo?
500 Internal Server Error
javax.faces.FacesException: #{agenda.buscar}: javax.faces.el.EvaluationException: java.lang.NullPointerException at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:98) at javax.faces.component.UICommand.broadcast(UICommand.java:332) at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:287) at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:401) at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:95) at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:268) at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:110) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:213) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:713) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:871) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:221) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:122) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:111) at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260) at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:239) at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:34) at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:880) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.3.0) ].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303) at java.lang.Thread.run(Thread.java:595)Caused by: javax.faces.el.EvaluationException: java.lang.NullPointerException at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:150) at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:92) ... 20 moreCaused by: java.lang.NullPointerException at agenda.AgendaDB.buscar(AgendaDB.java:96) 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:585) at com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:146) ... 21 more
Como que posso ver se o campo com o valor preenchido esta realmente sendo passado para a execução do método
Código da pagina é essa:
buscar.jsp
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<%@ page contentType="text/html;charset=windows-1252"%>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<html>
<link href="css/blaf.css" rel="stylesheet" media="screen"/>
<link href="css/oracle.css" rel="stylesheet" media="screen"/>
<link href="css/jdeveloper.css" rel="stylesheet" media="screen"/>
<body><f:view>
<h:form>
<center>
<h2>Busca</h2>
</center>
<br></br>
Digite o nome:
<h:inputText id="nome" value="#{agenda.nome}"/>
<h:commandButton value="OK" action="#{agenda.buscar}"/>
</h:form>
<br></br>
<h:outputLink value="index.jsf">
<f:verbatim>voltar</f:verbatim>
</h:outputLink>
</f:view></body>
</html>
