title: What is causing this Java "Cannot find symbol" error?
body: <p>I'm modifying inherited code and keep getting a weird "cannot find symbol" error which is throwing me off.</p>
  
  <pre><code>   //======= Error =========
  
  Compiling 1 source file to /Users/Inprimus/Projects/Workspace/Soft/build/web/WEB-INF/classes
  /Users/Inprimus/Projects/Workspace/Soft/WebContent/WEB-INF/classes/fr/service/CarPeer.java:49: cannot find symbol
  symbol : method addCarToCompany(java.lang.Long,fr.model.company.Car)
  location: class fr.dao.CompanyDAO
  cmpDAO.addCarToCompany(idCompany,car);
  ^
  1 error
  </code></pre>
  
  <p>Car peer: </p>
  
  <pre><code>package fr.service;    
  import fr.model.company.Car;
  import fr.dao.CompanyDAO;
  import fr.dao.CarDao;
  
  public class CarPeer {
      private static CarDao carDAO= new CarDao();
      private static CompanyDAO cmpDAO = new CompanyDAO();
  
      public static void storeCar(Long idCompany, Car car) throws UserServiceException, Exception {
          try {
              cmpDAO.addCarToCompany(idCompany,car);
              System.out.println("Car stored : "+car.toString()+" in "+idCompany);
              carDAO.storeCar(car);
          } catch(DAOException ex) {
              throw new UserServiceException(ex.getMessage(), ex);
          }
      }
  }
  </code></pre>
  
  <p>CompanyDao: </p>
  
  <pre><code>   package fr.dao;
      import fr.model.accounting.Cost;
      import fr.model.company.Car;
  
      public class CompanyDAO extends GenericDAO&lt;Company&gt; {
  
      private enum ChildType {
      COST{
      public void addChildToCompany(Company company, Object child) {
      company.addCost((Cost)child);
      }
      },
      CAR{
      public void addChildToCompany(Company company, Object child) {
      company.addCar((Car)child);
      }
      };
      public abstract void addChildToCompany(Company company, Object child);
      }
  private void addChildToCompany(Long idCompany, Object child, ChildType type) throws NotFoundDAOException, AlreadyExistDAOException, Exception {
          try {
              // Begin unit of work
              Session session = HibernateUtil.getSessionFactory().getCurrentSession();
              session.beginTransaction();
  
              Company company = (Company) session.load(Company.class, idCompany);
  
              type.addChildToCompany(company, child);
              session.flush();
  
              // End unit of work
              session.getTransaction().commit();
  
          } catch (ObjectNotFoundException ex) {
              HibernateUtil.getSessionFactory().getCurrentSession().getTransaction().rollback();
              throw new NotFoundDAOException("Identified object " + idCompany
                      + " doesn't exist in database", ex);
          } catch (ConstraintViolationException ex) {
              HibernateUtil.getSessionFactory().getCurrentSession().getTransaction().rollback();
              throw new AlreadyExistDAOException("The new identity already exsits in database", ex);
          } catch (Exception ex) {
              ex.printStackTrace();
              HibernateUtil.getSessionFactory().getCurrentSession().getTransaction().rollback();
              throw new Exception(ex);
          }
      }
      public CompanyDAO() {
      super(Company.class);
      }
      public void addCarToCompany(Long idCompany, Car car) throws NotFoundDAOException, AlreadyExistDAOException, Exception {
      addChildToCompany(idCompany, car, ChildType.CAR);
      }
      }
  </code></pre>
  
  <p>I have triple checked but can't find anything wrong with the code thus far. I am building it in Netbeans 7.0.1.I should mention that I get this error when I build, but I can run the web app with no issues whatsoever (yet). But I am worried this may come back to bite in the behind.</p>
  
  <hr>
  
  <p>I just noticed in the file tree that above the CompanyDAO classes are similarly named files bearing the format: CompanyDAO$ChildType#.class (# corresponds to a number) I'm guessing it hasn't re-compiled the class to generate the extra child Type I added. How can I effect this?</p>