private NecessaryAccessorsVisitor checkNecessaryGettersSetters4SourceClass() {
    final NecessaryAccessorsVisitor visitor =
        new NecessaryAccessorsVisitor() {
          @Override
          protected boolean hasGetterOrSetter(PsiMethod[] getters) {
            for (PsiMethod getter : getters) {
              if (!isInMovedElement(getter)) return true;
            }
            return false;
          }

          @Override
          protected boolean isProhibitedReference(PsiField field) {
            if (fields.contains(field)) {
              return false;
            }
            if (innerClasses.contains(field.getContainingClass())) {
              return false;
            }
            return true;
          }
        };
    for (PsiField field : fields) {
      field.accept(visitor);
    }
    for (PsiMethod method : methods) {
      method.accept(visitor);
    }
    for (PsiClass innerClass : innerClasses) {
      innerClass.accept(visitor);
    }
    return visitor;
  }
  private NecessaryAccessorsVisitor checkNecessaryGettersSetters4ExtractedClass() {
    final NecessaryAccessorsVisitor visitor =
        new NecessaryAccessorsVisitor() {
          @Override
          protected boolean hasGetterOrSetter(PsiMethod[] getters) {
            for (PsiMethod getter : getters) {
              if (isInMovedElement(getter)) return true;
            }
            return false;
          }

          @Override
          protected boolean isProhibitedReference(PsiField field) {
            if (fields.contains(field)) {
              return true;
            }
            if (innerClasses.contains(field.getContainingClass())) {
              return true;
            }
            return false;
          }

          @Override
          public void visitMethod(PsiMethod method) {
            if (methods.contains(method)) return;
            super.visitMethod(method);
          }

          @Override
          public void visitField(PsiField field) {
            if (fields.contains(field)) return;
            super.visitField(field);
          }

          @Override
          public void visitClass(PsiClass aClass) {
            if (innerClasses.contains(aClass)) return;
            super.visitClass(aClass);
          }
        };
    sourceClass.accept(visitor);
    return visitor;
  }
  private PsiClass buildClass() {
    final PsiManager manager = sourceClass.getManager();
    final Project project = sourceClass.getProject();
    final ExtractedClassBuilder extractedClassBuilder = new ExtractedClassBuilder();
    extractedClassBuilder.setProject(myProject);
    extractedClassBuilder.setClassName(newClassName);
    extractedClassBuilder.setPackageName(newPackageName);
    extractedClassBuilder.setOriginalClassName(sourceClass.getQualifiedName());
    extractedClassBuilder.setRequiresBackPointer(requiresBackpointer);
    extractedClassBuilder.setExtractAsEnum(enumConstants);
    for (PsiField field : fields) {
      extractedClassBuilder.addField(field);
    }
    for (PsiMethod method : methods) {
      extractedClassBuilder.addMethod(method);
    }
    for (PsiClass innerClass : innerClasses) {
      extractedClassBuilder.addInnerClass(
          innerClass, innerClassesToMakePublic.contains(innerClass));
    }
    extractedClassBuilder.setTypeArguments(typeParams);
    final List<PsiClass> interfaces = calculateInterfacesSupported();
    extractedClassBuilder.setInterfaces(interfaces);

    if (myGenerateAccessors) {
      final NecessaryAccessorsVisitor visitor = checkNecessaryGettersSetters4ExtractedClass();
      sourceClass.accept(visitor);
      extractedClassBuilder.setFieldsNeedingGetters(visitor.getFieldsNeedingGetter());
      extractedClassBuilder.setFieldsNeedingSetters(visitor.getFieldsNeedingSetter());
    }

    final String classString = extractedClassBuilder.buildBeanClass();
    if (extractInnerClass) {
      final PsiFileFactory factory = PsiFileFactory.getInstance(project);
      final PsiJavaFile newFile =
          (PsiJavaFile)
              factory.createFileFromText(
                  newClassName + ".java", JavaFileType.INSTANCE, classString);
      final PsiClass psiClass = newFile.getClasses()[0];
      if (!psiClass.isEnum()) {
        final PsiModifierList modifierList = psiClass.getModifierList();
        assert modifierList != null;
        modifierList.setModifierProperty(PsiModifier.STATIC, true);
      }
      final PsiElement addedClass = sourceClass.add(psiClass);
      return (PsiClass)
          CodeStyleManager.getInstance(manager)
              .reformat(
                  JavaCodeStyleManager.getInstance(project).shortenClassReferences(addedClass));
    }

    try {
      final PsiFile containingFile = sourceClass.getContainingFile();
      final PsiDirectory directory;
      final PsiDirectory containingDirectory = containingFile.getContainingDirectory();
      if (myMoveDestination != null) {
        directory = myMoveDestination.getTargetDirectory(containingDirectory);
      } else {
        final Module module = ModuleUtil.findModuleForPsiElement(containingFile);
        assert module != null;
        directory =
            PackageUtil.findOrCreateDirectoryForPackage(
                module, newPackageName, containingDirectory, false, true);
      }
      if (directory != null) {
        final PsiFileFactory factory = PsiFileFactory.getInstance(project);
        final PsiFile newFile =
            factory.createFileFromText(newClassName + ".java", JavaFileType.INSTANCE, classString);
        final PsiElement addedFile = directory.add(newFile);
        final CodeStyleManager codeStyleManager =
            CodeStyleManager.getInstance(manager.getProject());
        final PsiElement shortenedFile =
            JavaCodeStyleManager.getInstance(project).shortenClassReferences(addedFile);
        return ((PsiJavaFile) codeStyleManager.reformat(shortenedFile)).getClasses()[0];
      } else {
        return null;
      }
    } catch (IncorrectOperationException e) {
      return null;
    }
  }