final int keyIdx = cpg.addMethodref(getClassName(),
"buildKeys", keySig);
il.append(classGen.loadTranslet()); // The 'this' pointer
il.append(classGen.loadTranslet());
il.append(new GETFIELD(domField)); // The DOM reference
il.append(transf.loadIterator()); // Not really used, but...
il.append(transf.loadHandler()); // The output handler
il.append(new PUSH(cpg, DTM.ROOT_NODE)); // Start with the root node
il.append(new INVOKEVIRTUAL(keyIdx));