The problem seems to me comes from this exception. Probably Seam publisher classes (like JstPublisher) are not even initialized. Does anybody have such problem? !ENTRY org.eclipse.wst.server.core 4 0 2008-08-05 20:14:37.687 !MESSAGE Error calling delegate setupLaunchConfiguration() GlassFish V2 !STACK 0 java.lang.NullPointerException at org.eclipse.jst.server.generic.internal.xml.Resolver.skipToProperty(Resolver.java:103) at org.eclipse.jst.server.generic.internal.xml.Resolver.resolvePropertiesFromCache(Resolver.java:90) at org.eclipse.jst.server.generic.internal.xml.Resolver.resolveProperties(Resolver.java:68) at org.eclipse.jst.server.generic.core.internal.GenericServerBehaviour.getStartClassName(GenericServerBehaviour.java:259) at org.eclipse.jst.server.generic.core.internal.GenericServerBehaviour.setupLaunchConfiguration(GenericServerBehaviour.java:354) at org.eclipse.wst.server.core.internal.Server.setupLaunchConfiguration(Server.java:1419) at org.eclipse.wst.server.core.internal.Server.getLaunchConfiguration(Server.java:1462) at org.eclipse.wst.server.core.internal.Server.startImpl2(Server.java:2637) at org.eclipse.wst.server.core.internal.Server.startImpl(Server.java:2590) at org.eclipse.wst.server.core.internal.Server$PublishJob.run(Server.java:260) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4168801#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...