Collection<GroupReference> installGroups = readGroupReferenceCollection(el, "installGroup");
ProjectFeatureExtension ext = new ProjectFeatureExtension(el, id, label, description, published, requires, injections, installGroups);
Collection<GroupReference> installGroups = readGroupReferenceCollection(el, "installGroup");
ProjectFeatureExtension ext = new ProjectFeatureExtension(el, id, label, description, published, requires, injections, installGroups);