private static PsiParameter createNewParameter(
     JavaChangeInfo changeInfo, JavaParameterInfo newParm, PsiSubstitutor substitutor)
     throws IncorrectOperationException {
   final PsiParameterList list = changeInfo.getMethod().getParameterList();
   final PsiElementFactory factory =
       JavaPsiFacade.getInstance(list.getProject()).getElementFactory();
   final PsiType type = substitutor.substitute(newParm.createType(list, list.getManager()));
   return factory.createParameter(newParm.getName(), type);
 }
 private static void resolveParameterVsFieldsConflicts(
     final PsiParameter[] newParms,
     final PsiMethod method,
     final PsiParameterList list,
     boolean[] toRemoveParm)
     throws IncorrectOperationException {
   List<FieldConflictsResolver> conflictResolvers = new ArrayList<FieldConflictsResolver>();
   for (PsiParameter parameter : newParms) {
     conflictResolvers.add(new FieldConflictsResolver(parameter.getName(), method.getBody()));
   }
   ChangeSignatureUtil.synchronizeList(
       list, Arrays.asList(newParms), ParameterList.INSTANCE, toRemoveParm);
   JavaCodeStyleManager.getInstance(list.getProject()).shortenClassReferences(list);
   for (FieldConflictsResolver fieldConflictsResolver : conflictResolvers) {
     fieldConflictsResolver.fix();
   }
 }