As we started developing the new UI with Vaadin we got again the infamous Eclipse error "Plugin execution not covered by lifecycle configuration:" with gwt-maven-plugin. This is due to the fact that we needed to downgrade to version 2.3.0 as Vaadin depends on gwt 2.3.0 (gwt and gwt-maven-plugin versions are in synch and 2.4.x cannot be used with 2.3.x or viceversa). Also I realized that in pom 23 I mistakenly inverted goals for maven-javadoc-plugin and gwt-maven-plugin, namely I set goal "resources" for javadoc and "javadoc" for resources.