CallGraph callGraph = Scene.v().getCallGraph();
Iterator outEdges = callGraph.edgesOutOf(method);
while (outEdges.hasNext()) {
Edge edge = (Edge) outEdges.next();
SootMethod targetMethod = edge.tgt();
_add(targetMethod);
}
// Add the nodes called in the body of the method.
_add(_getNodesAccessedInBodyOf(method));