void (String name) { var module = myFacet.getModule(); // facet names must be unique within the same module and facet type var facetNameExists = myFacetConfigurables.keySet().stream() .filter(facet -> facet.getModule() == module && facet.getTypeId() == myFacet.getTypeId()) .map(facet -> myFacetConfigurables.get(facet)) .anyMatch(facetConfigurable -> name.equals(facetConfigurable.getDisplayName())); if (!facetNameExists) { getFacetsConfigurator().getOrCreateModifiableModel(module).rename(myFacet, name); myFacetName = name; } }