Opa!Tô pegando uma sessão do usuario,mas tô recebendo um nullpointer aqui esquisito!O JSP:
[code]
<%@ page language="java" import="com.siap.,org.prevayler." %>
<%
Prevayler prevayler = (Prevayler)this.getServletContext().getAttribute("prevayler");
Turma[] turmas = ((SistemaAcademico)prevayler.prevalentSystem()).getTurmas();
Usuario usuario=(Usuario)session.getAttribute("usuario");
%>
<html><head><title>SIAP-2004</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body>
<p><h3>Turmas liberadas para cursar:</h3></p>
<form method="POST" action="matriculaConfirmada.jsp">
<table border=0><caption>Selecione as disciplinas para matrícula:</caption>
<tr><th>vazio</th><th>Turma</th><th>Matéria</th><th>Professor</th><th>Dia(s)</th><th>Horário</th><th>Sala</th><th>Campus</th>
<% Turma turma;
for(int i = 0; i < turmas.length; i++){
turma=turmas[i];
if(turma.getCurso().equals(usuario.idCurso))
out.println("<tr>"+"<th>"+"<input type=CHECKBOX name="+"turma"+">"+"</th>"+"<th>"+turma.idTurma+"</th>"+"<th>"+turma.nomeDaMateria+"</th>"+"<th>"+turma.nomeDoProfessor+"</th>"+"<th>"+turma.diaDaSemana+"</th>"+"<th>"+turma.horario+"</th>"+"<th>"+turma.nomeSala+"</th>"+"<th>"+turma.nomeCampus+"</th>"+"</tr>");
%>
</table>
<% } %>
<center><input type="submit" value="Matricular"></center>
</form></body></html>[/code]
A Stack:
2004-10-26 23:05:47 StandardWrapperValve[jsp]: Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
at org.apache.jsp.Matricula_jsp._jspService(Matricula_jsp.java:69)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:534)
Alguém tem alguma idéia?
