public void invoke(Project project, PsiExpression[] expressions) {
   for (PsiExpression expression : expressions) {
     final PsiFile file = expression.getContainingFile();
     if (!CommonRefactoringUtil.checkReadOnlyStatus(project, file)) return;
   }
   PsiDocumentManager.getInstance(project).commitAllDocuments();
   super.invoke(project, expressions, null);
 }
    public void run() {
      try {
        final boolean rebindNeeded2 = !myVariableName.equals(myFieldName) || myRebindNeeded;
        final PsiReference[] refs;
        if (rebindNeeded2) {
          refs =
              ReferencesSearch.search(myLocal, GlobalSearchScope.projectScope(myProject), false)
                  .toArray(new PsiReference[0]);
        } else {
          refs = null;
        }

        final PsiMethod enclosingConstructor =
            BaseExpressionToFieldHandler.getEnclosingConstructor(myDestinationClass, myLocal);
        myField =
            mySettings.isIntroduceEnumConstant()
                ? EnumConstantsUtil.createEnumConstant(myDestinationClass, myLocal, myFieldName)
                : createField(
                    myLocal,
                    mySettings.getForcedType(),
                    myFieldName,
                    myInitializerPlace == IN_FIELD_DECLARATION);
        myField = (PsiField) myDestinationClass.add(myField);
        BaseExpressionToFieldHandler.setModifiers(myField, mySettings);
        if (!mySettings.isIntroduceEnumConstant()) {
          VisibilityUtil.fixVisibility(myOccurences, myField, mySettings.getFieldVisibility());
        }

        myLocal.normalizeDeclaration();
        PsiDeclarationStatement declarationStatement =
            (PsiDeclarationStatement) myLocal.getParent();
        final BaseExpressionToFieldHandler.InitializationPlace finalInitializerPlace;
        if (myLocal.getInitializer() == null) {
          finalInitializerPlace = IN_FIELD_DECLARATION;
        } else {
          finalInitializerPlace = myInitializerPlace;
        }
        final PsiElementFactory factory = JavaPsiFacade.getInstance(myProject).getElementFactory();

        switch (finalInitializerPlace) {
          case IN_FIELD_DECLARATION:
            declarationStatement.delete();
            break;

          case IN_CURRENT_METHOD:
            PsiStatement statement = createAssignment(myLocal, myFieldName, factory);
            myAssignmentStatement = (PsiStatement) declarationStatement.replace(statement);
            break;

          case IN_CONSTRUCTOR:
            myAssignmentStatement =
                addInitializationToConstructors(myLocal, myField, enclosingConstructor, factory);
            break;
          case IN_SETUP_METHOD:
            myAssignmentStatement = addInitializationToSetUp(myLocal, myField, factory);
        }

        if (enclosingConstructor != null && myInitializerPlace == IN_CONSTRUCTOR) {
          PsiStatement statement = createAssignment(myLocal, myFieldName, factory);
          myAssignmentStatement = (PsiStatement) declarationStatement.replace(statement);
        }

        if (rebindNeeded2) {
          for (final PsiReference reference : refs) {
            if (reference != null) {
              // expr = RefactoringUtil.outermostParenthesizedExpression(expr);
              RefactoringUtil.replaceOccurenceWithFieldRef(
                  (PsiExpression) reference, myField, myDestinationClass);
              // replaceOccurenceWithFieldRef((PsiExpression)reference, field, aaClass);
            }
          }
          // RefactoringUtil.renameVariableReferences(local, pPrefix + fieldName,
          // GlobalSearchScope.projectScope(myProject));
        }
      } catch (IncorrectOperationException e) {
        LOG.error(e);
      }
    }