org.eclipse.viatra2.visualisation org.eclipse.jdt.core.javabuilder org.eclipse.pde.ManifestBuilder org.eclipse.pde.SchemaBuilder edu.umd.cs.findbugs.plugin.eclipse.findbugsBuilder org.eclipse.pde.PluginNature org.eclipse.jdt.core.javanature edu.umd.cs.findbugs.plugin.eclipse.findbugsNature