It seems that you get a NullPointerException in method setName, class Person.
Could you show us your code for class Person? It may help.
Regards,
Ruben
________________________________
De: java-ee-j2ee-programming-with-passion@googlegroups.com
[mailto:java-ee-j2ee-programming-with-pass...@googlegroups.com] En nombre de
Dhwani Patel
Enviado el: miércoles, 30 de septiembre de 2009 2:42
Para: Java EE (J2EE) Programming with Passion!
Asunto: [java ee programming] Expression Language - 4006 homework
Hey there,
I am stuck with this project...
I initially got the output for customers But when i added the two lines below,
Person person = new Person("Dhwani","patel");
sce.getServletContext().setAttribute("person", person);
I am getting an error like,
INFO: SharedSecrets.getJavaNetAccess()=java.net.urlclassloade...@50620f
INFO: Unknown loader org.glassfish.internal.api.delegatingclassloa...@e38fca
class org.glassfish.internal.api.DelegatingClassLoader
SEVERE: WebModule[/MyHelloWeb]PWC1275: Exception sending context initialized
event to listener instance of class
org.apache.taglibs.standard.examples.startup.Init
java.lang.NullPointerException
at
org.apache.taglibs.standard.examples.beans.Person.setName(Person.java:32)
at
org.apache.taglibs.standard.examples.beans.Person.<init>(Person.java:24)
at org.apache.taglibs.standard.examples.startup.Init.init(Init.java:110)
at
org.apache.taglibs.standard.examples.startup.Init.contextInitialized(Init.java:78)
at
org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4623)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:5323)
at com.sun.enterprise.web.WebModule.start(WebModule.java:456)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:922)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:906)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:696)
at
com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:2205)
at
com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1890)
at com.sun.enterprise.web.WebApplication.start(WebApplication.java:85)
at
com.sun.enterprise.v3.server.ApplicationLifecycle.start(ApplicationLifecycle.java:560)
at
com.sun.enterprise.v3.server.ApplicationLifecycle.start(ApplicationLifecycle.java:547)
at
com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:189)
at
org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:329)
at
com.sun.enterprise.v3.admin.CommandRunner$2.execute(CommandRunner.java:302)
at
com.sun.enterprise.v3.admin.CommandRunner.doCommand(CommandRunner.java:312)
at
com.sun.enterprise.v3.admin.CommandRunner.doCommand(CommandRunner.java:119)
at
com.sun.enterprise.v3.admin.CommandRunner.doCommand(CommandRunner.java:99)
at
com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:250)
at
com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:176)
at
com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:147)
at
com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:180)
at
com.sun.grizzly.http.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:633)
at
com.sun.grizzly.http.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:570)
at
com.sun.grizzly.http.DefaultProcessorTask.process(DefaultProcessorTask.java:827)
at
com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:152)
at
com.sun.enterprise.v3.services.impl.GlassfishProtocolChain.executeProtocolFilter(GlassfishProtocolChain.java:71)
at
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:103)
at
com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:89)
at
com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
at
com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:67)
at
com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:56)
at
com.sun.grizzly.util.WorkerThreadImpl.processTask(WorkerThreadImpl.java:325)
at com.sun.grizzly.util.WorkerThreadImpl.run(WorkerThreadImpl.java:184)
SEVERE: PWC1306: Startup of context /MyHelloWeb failed due to previous errors
Am I missing any step ??
Thanks,
--
Dhwani Patel
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