I am getting null pointer exception while publishing dynamic web project on jboss using eclipse

Environment details

Version: 3.3.2
Build id: M20080221-1800
Jboss: 3.2.3
JDK 1.5

I have checked with google, but nothing work, can anyone suggest me what is the root cause for that Following is the log trace may be help to understance the situation

!ENTRY org.eclipse.wst.server.core 4 0 2010-06-13 19:03:44.568
!MESSAGE Error calling delegate restart() JBOSS 4.0

!ENTRY org.eclipse.wst.server.core 4 0 2010-06-13 19:39:34.365
!MESSAGE Could not publish to the server.
!STACK 0
java.lang.NullPointerException
    at org.eclipse.wst.common.componentcore.internal.util.ComponentUtilities.getDeployUriOfComponent(ComponentUtilities.java:327)
    at org.eclipse.jst.j2ee.internal.deployables.J2EEFlexProjDeployable.getURI(J2EEFlexProjDeployable.java:429)
    at org.eclipse.jst.server.generic.core.internal.publishers.AntPublisher.guessModuleName(AntPublisher.java:259)
    at org.eclipse.jst.server.generic.core.internal.publishers.AntPublisher.getPublishProperties(AntPublisher.java:224)
    at org.eclipse.jst.server.generic.core.internal.publishers.AntPublisher.publish(AntPublisher.java:110)
    at org.eclipse.jst.server.generic.core.internal.GenericServerBehaviour.publishModule(GenericServerBehaviour.java:84)
    at org.eclipse.wst.server.core.model.ServerBehaviourDelegate.publishModule(ServerBehaviourDelegate.java:749)
    at org.eclipse.wst.server.core.model.ServerBehaviourDelegate.publishModules(ServerBehaviourDelegate.java:835)
    at org.eclipse.wst.server.core.model.ServerBehaviourDelegate.publish(ServerBehaviourDelegate.java:669)
    at org.eclipse.wst.server.core.internal.Server.doPublish(Server.java:887)
    at org.eclipse.wst.server.core.internal.Server.publish(Server.java:874)
    at org.eclipse.wst.server.core.internal.PublishServerJob.run(PublishServerJob.java:72)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)