public void testAddSpecifiedJoinColumn() throws Exception {
    createTestEntityWithElementCollection();
    addXmlClassRef(FULLY_QUALIFIED_TYPE_NAME);

    JavaElementCollectionMapping2_0 elementCollectionMapping =
        (JavaElementCollectionMapping2_0)
            getJavaPersistentType().getAttributes().iterator().next().getMapping();
    JavaCollectionTable2_0 collectionTable = elementCollectionMapping.getCollectionTable();

    JavaResourceType resourceType =
        (JavaResourceType)
            getJpaProject().getJavaResourceType(FULLY_QUALIFIED_TYPE_NAME, AstNodeType.TYPE);
    JavaResourceField resourceField = resourceType.getFields().iterator().next();

    SpecifiedJoinColumn joinColumn = collectionTable.addSpecifiedJoinColumn(0);
    joinColumn.setSpecifiedName("FOO");

    CollectionTableAnnotation2_0 joinTableResource =
        (CollectionTableAnnotation2_0)
            resourceField.getAnnotation(CollectionTableAnnotation2_0.ANNOTATION_NAME);

    assertEquals("FOO", joinTableResource.joinColumnAt(0).getName());

    SpecifiedJoinColumn joinColumn2 = collectionTable.addSpecifiedJoinColumn(0);
    joinColumn2.setSpecifiedName("BAR");

    assertEquals("BAR", joinTableResource.joinColumnAt(0).getName());
    assertEquals("FOO", joinTableResource.joinColumnAt(1).getName());

    SpecifiedJoinColumn joinColumn3 = collectionTable.addSpecifiedJoinColumn(1);
    joinColumn3.setSpecifiedName("BAZ");

    assertEquals("BAR", joinTableResource.joinColumnAt(0).getName());
    assertEquals("BAZ", joinTableResource.joinColumnAt(1).getName());
    assertEquals("FOO", joinTableResource.joinColumnAt(2).getName());

    ListIterator<JavaSpecifiedJoinColumn> joinColumns =
        collectionTable.getSpecifiedJoinColumns().iterator();
    assertEquals(joinColumn2, joinColumns.next());
    assertEquals(joinColumn3, joinColumns.next());
    assertEquals(joinColumn, joinColumns.next());

    joinColumns = collectionTable.getSpecifiedJoinColumns().iterator();
    assertEquals("BAR", joinColumns.next().getName());
    assertEquals("BAZ", joinColumns.next().getName());
    assertEquals("FOO", joinColumns.next().getName());
  }