// Create an instruction list that contains the default next-node
// iteration
final InstructionList ilLoop = new InstructionList();
ilLoop.append(methodGen.loadIterator());
ilLoop.append(methodGen.nextNode());
ilLoop.append(DUP);
ilLoop.append(new ISTORE(_currentIndex));
// The body of this code can get very large - large than can be handled
// by a single IFNE(body.getStart()) instruction - need workaround: