private MasterDetailsComponent.MyNode addFacetNode( final Facet facet, final MasterDetailsComponent.MyNode moduleNode) { final MasterDetailsComponent.MyNode existing = findFacetNode(facet, moduleNode); if (existing != null) return existing; final FacetConfigurable facetConfigurable = getOrCreateConfigurable(facet); final MasterDetailsComponent.MyNode facetNode = new MasterDetailsComponent.MyNode(facetConfigurable); myNodes.put(facet, facetNode); MasterDetailsComponent.MyNode parent = moduleNode; final Facet underlyingFacet = facet.getUnderlyingFacet(); if (underlyingFacet != null) { parent = myNodes.get(underlyingFacet); LOG.assertTrue(parent != null); } myStructureConfigurable.addNode(facetNode, parent); return facetNode; }