Set<SuperVertex> forPopUp = new HashSet<SuperVertex>();
for (IVertex vertex : vertices) {
if (vertex instanceof SuperVertex) {
forPopUp.add((SuperVertex) vertex);
} else if (vertex instanceof SimpleVertex) {
SimpleVertex simple = (SimpleVertex) vertex;
if (simple.getSuperVertex() != null) {
forPopUp.add(simple.getSuperVertex());
}
}
if (vertex.hitTest(mouseLocation)) {
show = true;
}