Hibernate: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: неизвестный столбец в «списке полей»

Я получаю эту проблему и не могу решить.

Я хочу реализовать сопоставление OneToMany/ManyToOne без создания дополнительной таблицы.

У меня есть две сущности:

(1) Сотрудник.java

@Entity(name="EMPLOYEE_DETAILS")
public class Employee {
  private int empId;    
  private String employeeName;
  private Date joiningDate;

  private Collection<Project> project = new ArrayList<Project>();

  @Id
  @GeneratedValue (strategy = GenerationType.AUTO)
  public int getEmpId() {
        return empId;
  }
  public void setEmpId(int employeeId) {
        this.empId = employeeId;
  }

  public String getEmployeeName() {
        return employeeName;
  }
  public void setEmployeeName(String employeeName) {
        this.employeeName = employeeName;
  }

  @Temporal (TemporalType.DATE)
  public Date getJoiningDate() {
        return joiningDate;
  }
  public void setJoiningDate(Date joiningDate) {
        this.joiningDate = joiningDate;
  }

  @OneToMany(mappedBy="employeeObj")
  public Collection<Project> getProject() {
        return project;
  }
  public void setProject(Collection<Project> project) {
        this.project = project;
  }
 }

(2) Проект.java

@Entity
public class Project {
@Id
@GeneratedValue (strategy = GenerationType.AUTO)
private int projectId;
private String projectName;

@ManyToOne
@JoinColumn(name="EMPLOYEE_ID")
private Employee employeeObj;

public int getProjectId() {
    return projectId;
}
public void setProjectId(int projectId) {
    this.projectId = projectId;
}
public String getProjectName() {
    return projectName;
}
public void setProjectName(String projectName) {
    this.projectName = projectName;
}
public Employee getEmployeeObj() {
    return employeeObj;
}
public void setEmployeeObj(Employee employeeObj) {
    this.employeeObj = employeeObj;
}

}

И у меня есть основной класс:

(3) MainClass.java

public class MainClass {

public static void main(String[] args) {
    Collection<Project> collection = new ArrayList<Project>();

    Project projectA = new Project();
    projectA.setProjectName("ABC");

    Project projectB = new Project();
    projectB.setProjectName("DEF");

    collection.add(projectA);
    collection.add(projectB);

    Employee employee = new Employee();
    employee.setEmployeeName("Swarup Saha");
    employee.setJoiningDate(new Date());

    employee.setProject(collection);

    //Many To One Configuration
    projectA.setEmployeeObj(employee);
    projectB.setEmployeeObj(employee);

    Configuration configuration = new Configuration().configure();
    StandardServiceRegistryBuilder builder = new StandardServiceRegistryBuilder().
    applySettings(configuration.getProperties());
    SessionFactory factory = configuration.buildSessionFactory(builder.build());

    Session session = factory.openSession();
    session.beginTransaction();
    session.save(employee);
    session.save(projectA);
    session.save(projectB);

    session.getTransaction().commit();
    session.close();
    factory.close();         
}
}

Когда я запускаю это, я получаю эту проблему в консоли.

ERROR: Table 'project' already exists
Hibernate: alter table Project add constraint FK_aj4dhrm7m2sit4f8tcimf1121         foreign key (EMPLOYEE_ID) references EMPLOYEE_DETAILS (empId)
Mar 25, 2015 12:39:29 AM org.hibernate.tool.hbm2ddl.SchemaExport perform
ERROR: HHH000389: Unsuccessful: alter table Project add constraint  FK_aj4dhrm7m2sit4f8tcimf1121 foreign key (EMPLOYEE_ID) references   EMPLOYEE_DETAILS (empId)
Mar 25, 2015 12:39:29 AM org.hibernate.tool.hbm2ddl.SchemaExport perform
ERROR: Key column 'EMPLOYEE_ID' doesn't exist in table
Mar 25, 2015 12:39:29 AM org.hibernate.tool.hbm2ddl.SchemaExport execute
INFO: HHH000230: Schema export complete
Hibernate: insert into EMPLOYEE_DETAILS (employeeName, joiningDate) values (?, ?)
Hibernate: insert into Project (EMPLOYEE_ID, projectName) values (?, ?)
Mar 25, 2015 12:39:30 AM org.hibernate.engine.jdbc.spi.SqlExceptionHelper  logExceptions
WARN: SQL Error: 1054, SQLState: 42S22
Mar 25, 2015 12:39:30 AM org.hibernate.engine.jdbc.spi.SqlExceptionHelper logExceptions 
ERROR: Unknown column 'EMPLOYEE_ID' in 'field list'
Mar 25, 2015 12:39:30 AM  org.hibernate.engine.jdbc.spi.SqlExceptionHelper$StandardWarningHandler logWarning
WARN: SQL Warning Code: 1054, SQLState: 42S22
Mar 25, 2015 12:39:30 AM org.hibernate.engine.jdbc.spi.SqlExceptionHelper$StandardWarningHandler logWarning
WARN: Unknown column 'EMPLOYEE_ID' in 'field list'
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'EMPLOYEE_ID' in 'field list'

Любое предложение, что не так, я делаю здесь?