title: EclipseLink does not find my Converter class
body: <p>I have a JPA @Entity 'RecipestepBO' which uses a @Converter:</p>
  
  <pre><code>@Entity
  @Converter( name="UnitConverter", converterClass=com.lemcke.share.recipe.Unit.class )
  @Table(name = "recipestep")
  public class RecipestepBO {
  ...
  private Unit rpsunit = null;
  ...
  @Column( name="rpsunit" )
  @Convert( "UnitConverter" )
  public Unit getRpsunit() { return rpsunit; }
  ...
  }
  </code></pre>
  
  <p>And the converter class (which is in fact an enumeration) in the same package:</p>
  
  <pre><code>package com.lemcke.share.recipe;
  
  public enum Unit implements Converter {
  Liter ( "l" )
  ....
  all overloaded methods from the Converter
  ....
  }
  </code></pre>
  
  <p>Starting the application results in the following EclipseLink exception:</p>
  
  <p>Exception in thread "main" javax.persistence.PersistenceException: Exception [EclipseLink-28019] (Eclipse Persistence Services - 2.4.1.v20121003-ad44345): org.eclipse.persistence.exceptions.EntityManagerSetupException
  Exception Description: Deployment of PersistenceUnit [testPU] failed. Close all factories for this PersistenceUnit.
  Internal Exception: Exception [EclipseLink-7198] (Eclipse Persistence Services - 2.4.1.v20121003-ad44345): org.eclipse.persistence.exceptions.ValidationException
  Exception Description: Class: [com.lemcke.share.recipe.Unit] was not found while converting from class names to classes.</p>
  
  <p>The entity is written in the persistence.xml file. The converter 'Unit' is not (because its not an entity).</p>
  
  <p>What am I doing wrong?</p>