vosaocms org.eclipse.jdt.core.javabuilder org.eclipse.wst.common.project.facet.core.builder org.maven.ide.eclipse.maven2Builder com.google.gdt.eclipse.core.webAppProjectValidator com.google.appengine.eclipse.core.projectValidator com.google.appengine.eclipse.core.enhancerbuilder org.eclipse.jdt.core.javanature org.maven.ide.eclipse.maven2Nature org.eclipse.wst.common.project.facet.core.nature com.google.appengine.eclipse.core.gaeNature