org.eclipse.emf.ecp.view.groupedgrid.ui.swt org.eclipse.jdt.core.javabuilder org.eclipse.pde.ManifestBuilder org.eclipse.pde.SchemaBuilder net.sf.eclipsecs.core.CheckstyleBuilder org.eclipse.pde.PluginNature org.eclipse.jdt.core.javanature net.sf.eclipsecs.core.CheckstyleNature