for(String s : removedInNew) {
Vertex v = oldVertexMap.get(s);
v.addStyleClass(STYLE_Removed);
v.setStyles(labelStyleForResource(catalogMap.get(v), oldRoot, null, null, new String[1]));
resultingVertexMap.put(s, v);
g.addVertex(v);
}
for(String s : addedInNew) {
Vertex v = newVertexMap.get(s);
v.addStyleClass(STYLE_Added);
v.setStyles(labelStyleForResource(null, null, catalogMap.get(v), newRoot, new String[1]));