title: Error javax.naming.NamingException
body: <p>i new using j2ee, when i running this project using netbean 6.9 . I got this problem</p>
  
  <pre><code>javax.naming.NamingException: Lookup failed for 'java:comp/env' in SerialContext  [Root exception is javax.naming.NamingException: Invocation exception: Got null ComponentInvocation ]
          at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:442)
          at javax.naming.InitialContext.lookup(InitialContext.java:392)
          at javax.naming.InitialContext.lookup(InitialContext.java:392)
          at com.askad.ap.util.ListReader.readPath(ListReader.java:34)
          at com.askad.ap.util.ListReader.&lt;init&gt;(ListReader.java:29)
          at com.askad.ap.facade.UserTransactionFacade.&lt;init&gt;(UserTransactionFacade.java:44)
          at com.askad.ap.facade.__EJB31_Generated__UserTransactionFacade__Intf____Bean__.&lt;init&gt;(Unknown Source)
          at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
          at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
          at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
          at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
          at java.lang.Class.newInstance0(Class.java:355)
          at java.lang.Class.newInstance(Class.java:308)
          at com.sun.ejb.containers.BaseContainer.instantiateOptionalEJBLocalBusinessObjectImpl(BaseContainer.java:3801)
          at com.sun.ejb.containers.StatelessSessionContainer.initializeHome(StatelessSessionContainer.java:248)
          at com.sun.ejb.containers.ContainerFactoryImpl.createContainer(ContainerFactoryImpl.java:161)
          at org.glassfish.ejb.startup.EjbApplication.loadContainers(EjbApplication.java:207)
          at org.glassfish.ejb.startup.EjbDeployer.load(EjbDeployer.java:197)
          at org.glassfish.ejb.startup.EjbDeployer.load(EjbDeployer.java:63)
          at org.glassfish.internal.data.ModuleInfo.load(ModuleInfo.java:175)
          at org.glassfish.internal.data.ApplicationInfo.load(ApplicationInfo.java:216)
          at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:338)
          at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:183)
          at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:272)
          at com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:305)
          at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:320)
          at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1176)
          at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$900(CommandRunnerImpl.java:83)
          at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1235)
          at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1224)
          at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:365)
          at com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:204)
          at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:166)
          at com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:100)
          at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:245)
          at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:791)
          at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:693)
          at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:954)
          at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:170)
          at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:135)
          at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:102)
          at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:88)
          at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
          at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:53)
          at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:57)
          at com.sun.grizzly.ContextTask.run(ContextTask.java:69)
          at com.sun.grizzly.util.AbstractThreadPool$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.naming.NamingException: Invocation exception: Got null ComponentInvocation 
          at com.sun.enterprise.naming.impl.GlassfishNamingManagerImpl.getComponentId(GlassfishNamingManagerImpl.java:773)
          at com.sun.enterprise.naming.impl.GlassfishNamingManagerImpl.lookup(GlassfishNamingManagerImpl.java:655)
          at com.sun.enterprise.naming.impl.JavaURLContext.lookup(JavaURLContext.java:156)
          at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:428)
          ... 48 more
  </code></pre>
  
  <p>when i click </p>
  
  <pre><code>com.askad.ap.util.ListReader.readPath(ListReader.java:34)
  </code></pre>
  
  <p>NetBean give highlight to this line</p>
  
  <pre><code>Context env = (Context) new InitialContext().lookup("java:comp/env");
  </code></pre>
  
  <p>Anyone know how to resolve this problem?And what cause this problem? Thx b4</p>