}
Map<Integer, List<Integer>> fromto = new HashMap<Integer, List<Integer>>();
CFG(String internalName, MethodNode m) throws AnalyzerException
{
Analyzer a = new Analyzer(new BasicInterpreter()){
@Override protected void newControlFlowEdge(final int insn, final int successor) {
if (!fromto.containsKey(insn))
fromto.put(insn, new Vector<Integer>());
fromto.get(insn).add(successor);
}