private void visitNode(
Set<Object> gray,
Object obj,
LinkedList<Object> changedUnits,
HashSet<Object> changedUnitsSet) {
gray.add(obj);
changedUnits.addLast(obj);
changedUnitsSet.add(obj);
nodes.add(obj);
valueBefore.add(newInitialFlow());
valueAfter.add(newInitialFlow());
Iterator succsIt = graph.getSuccsOf(obj).iterator();
if (g.getSuccsOf(obj).size() > 0) {
while (succsIt.hasNext()) {
Object succ = succsIt.next();
if (!gray.contains(succ)) {
visitNode(gray, succ, changedUnits, changedUnitsSet);
}
}
}
}
