ch.ethz.origo.message
org.eclipse.jdt.core.javabuilder
org.eclipse.pde.ManifestBuilder
org.eclipse.pde.SchemaBuilder
org.eclipse.xtext.ui.shared.xtextBuilder
org.eclipse.jdt.core.javanature
org.eclipse.pde.PluginNature
org.eclipse.xtext.ui.shared.xtextNature