@Override
  public AnnotationVisitor visitLocalVariableAnnotation(int typeRef, TypePath typePath, Label[] start, Label[] end, int[] index, String desc, boolean visible) {
    for (Label aStart : start) {
      if (aStart == null) {
        return null;
      }
    }
    for (Label anEnd : end) {
      if (anEnd == null) {
        return null;
      }
    }
    return super.visitLocalVariableAnnotation(typeRef, typePath, start, end, index, desc, visible);
  }
@Override
  public AnnotationVisitor visitLocalVariableAnnotation(int typeRef, TypePath typePath, Label[] start, Label[] end, int[] index, String desc, boolean visible)