ClassCastException on Deploy to Sun Appserver 8.1 from Netbeans 4.1

Question

I am working with an academic group that has chosen to use the Netbeans 4.1/Sun Appserver 8.1 integrated combo. We are running a standard ejb app and a standard web app (java servlets, Struts flavor) that talks to the ejb app.
But the Sun Appserver is incredibly unstable with regard to the web container. If the problem is really Sun's, I can't believe
that they released something such as this. We get a ClassCastException related to jsp configuration everytime we
'deploy' from Netbeans to the web container.
And sometimes, the ejb container seems to just "disappear" from our runtime execution. In this situation, the web container gets no data from the ejb container, so that the form fields in the result html show up empty. Could the ClassCastException at deployment time be the problem? If not, what can we do to stabilize our deployment?
I've posted the error with system info below. Any help or ideas would be much appreciated. Thank you in advance!
[ o/s: Windows XP sp2 ]
[ jdk: 1.4.02 ]
[ Sun Appserver 8.1 ]
[ Netbeans 4.1 with 'deploy' command running ]
[ Netbeans deploying a standard ejb app and a standard web app, Struts
1.2 flavor ]
[ Error message: ]
Redeploying
C:\CMU\AdvancedProject\Develop�ment\se-2004-spring-pt-advance�d-team2\PETv3_Struts\dist\PETv�3_Struts.war
java.lang.ClassCastException
at
org.netbeans.modules.j2ee.sun.�dd.impl.web.model_2_4_1.SunWeb�App.setJspConfig(SunWebApp.jav�a:850)
at
org.netbeans.modules.j2ee.sun.�dd.impl.web.SunWebAppProxy.set�JspConfig(SunWebAppProxy.java:�342)
at
org.netbeans.modules.j2ee.sun.�share.configBean.WebAppRoot$1.�getDDSnippet(WebAppRoot.java:3�01)
at
org.netbeans.modules.j2ee.sun.�share.configBean.Base.addToGra�phs(Base.java:625)
at
org.netbeans.modules.j2ee.sun.�share.configBean.SunONEDeploym�entConfiguration.saveDConfigBe�an(SunONEDeploymentConfigurati�on.java:349)
at
org.netbeans.modules.j2ee.sun.�share.configBean.SunONEDeploym�entConfiguration.save(SunONEDe�ploymentConfiguration.java:317�)
at
org.netbeans.modules.j2ee.depl�oyment.config.ConfigSupportImp�l.getDeploymentPlanFileForDist�ribution(ConfigSupportImpl.jav�a:248)
at
org.netbeans.modules.j2ee.depl�oyment.config.ConfigSupportImp�l.getConfigurationFile(ConfigS�upportImpl.java:224)
at
org.netbeans.modules.j2ee.depl�oyment.impl.projects.Deploymen�tTargetImpl.getConfigurationFi�le(DeploymentTargetImpl.java:1�80)
at
org.netbeans.modules.j2ee.depl�oyment.impl.TargetServer.deplo�y(TargetServer.java:615)
at
org.netbeans.modules.j2ee.depl�oyment.devmodules.api.Deployme�nt.deploy(Deployment.java:129)
at org.netbeans.modules.j2ee.ant.�Deploy.execute(Deploy.java:62)
at org.apache.tools.ant.UnknownEl�ement.execute(UnknownElement.j�ava:275)
at org.apache.tools.ant.Task.perf�orm(Task.java:364)
at org.apache.tools.ant.Target.ex�ecute(Target.java:341)
at org.apache.tools.ant.Target.pe�rformTasks(Target.java:369)
at org.apache.tools.ant.Project.e�xecuteTarget(Project.java:1214�)
at org.apache.tools.ant.Project.e�xecuteTargets(Project.java:106�2)
at
org.apache.tools.ant.module.br�idge.impl.BridgeImpl.run(Bridg�eImpl.java:234)
at
org.apache.tools.ant.module.ru�n.TargetExecutor.run(TargetExe�cutor.java:242)
at
org.netbeans.core.execution.Ru�nClassThread.run(RunClassThrea�d.java:125)
Start registering the project's server resources
Finished registering server resources

Answer 1

Thanks for your post!
I have been meaning to reply to this for so long that I have forgotten the exact details of how we fixed this. However, the issue with the ejb container 'disappearing' at random times during application operation was resolved by doing something different in the ejb container. As I recall, the ejb code that we had when the problem existed should not have caused this kind of problem, but we found a work-around.
The 'ClassCastException' on deploy was apparently due to a problem with the portability of Netbeans Java code. Space characters in file paths appear to have caused this problem.