public void fix() throws IncorrectOperationException {
    if (myField == null) return;
    final PsiManager manager = myScope.getManager();
    for (PsiReferenceExpression referenceExpression : myReferenceExpressions) {
      if (!referenceExpression.isValid()) continue;
      final PsiElement newlyResolved = referenceExpression.resolve();
      if (!manager.areElementsEquivalent(newlyResolved, myField)) {
        RefactoringChangeUtil.qualifyReference(referenceExpression, myField, myQualifyingClass);
      }
    }
  }
public void fix()