When running my WebApp project from Eclipse most of times it run correctly. But if by mistake to stop server, I kill it in \"Console\" view on instead of \"Stop\" Server from \"
Check this version:
and
org.eclipse.wst.common.project.facet.core.xml
It can be incompatible with the chosen server. In my case when I tried to upgrade 3.0 tomcat 6.0 stopped working so I had to revert back to 2.5
so upgrade your server to a highter version or downgrade the web.xml version and run maven --> update project and try again