How to use

DynamicEntityImpl$PropertyWrapper

in

org.eclipse.persistence.internal.dynamic

@SuppressWarnings("unchecked")
public boolean remove(Object o) {
  return ((Collection<Object>)propertiesMap.get(ITEMS_PROPERTY).getValue()).remove(o);
}

/**
 * Instantiates a new property wrapper.
 *
 * @param value the value
 */
public PropertyWrapper(Object value) {
  setValue(value);
}

@SuppressWarnings("unchecked")    
public boolean retainAll(Collection<?> c) {
  return ((Collection<Object>)propertiesMap.get(ITEMS_PROPERTY).getValue()).retainAll(c);
}

@SuppressWarnings("unchecked")    
public boolean removeAll(Collection<?> c) {
  return ((Collection<Object>)propertiesMap.get(ITEMS_PROPERTY).getValue()).removeAll(c);
}

@SuppressWarnings("unchecked")    
public int size() {
  return ((Collection<Object>)propertiesMap.get(ITEMS_PROPERTY).getValue()).size();
}

@SuppressWarnings("unchecked")
public boolean retainAll(Collection<?> c) {
  return ((Collection<Object>)propertiesMap.get(ITEMS_PROPERTY).getValue()).retainAll(c);
}

@SuppressWarnings("unchecked")
public boolean add(Object e) {
  return ((Collection<Object>)propertiesMap.get(ITEMS_PROPERTY).getValue()).add(e);
}

@SuppressWarnings("unchecked")
public boolean contains(Object o) {
  return ((Collection<Object>)propertiesMap.get(ITEMS_PROPERTY).getValue()).contains(o);
}

@SuppressWarnings("unchecked")
public Object[] toArray() {
  return ((Collection<Object>)propertiesMap.get(ITEMS_PROPERTY).getValue()).toArray();
}

@SuppressWarnings("unchecked")    
public boolean isEmpty() {
  return ((Collection<Object>)propertiesMap.get(ITEMS_PROPERTY).getValue()).isEmpty();
}

@SuppressWarnings("unchecked")    
public boolean remove(Object o) {
  return ((Collection<Object>)propertiesMap.get(ITEMS_PROPERTY).getValue()).remove(o);
}

@SuppressWarnings("unchecked")    
public void clear() {
  ((Collection<Object>)propertiesMap.get(ITEMS_PROPERTY).getValue()).clear();
}

@SuppressWarnings("unchecked")
public boolean removeAll(Collection<?> c) {
  return ((Collection<Object>)propertiesMap.get(ITEMS_PROPERTY).getValue()).removeAll(c);
}

@SuppressWarnings("unchecked")    
public Object[] toArray() {
  return ((Collection<Object>)propertiesMap.get(ITEMS_PROPERTY).getValue()).toArray();
}

@SuppressWarnings("unchecked")
public boolean isEmpty() {
  return ((Collection<Object>)propertiesMap.get(ITEMS_PROPERTY).getValue()).isEmpty();
}

@SuppressWarnings("unchecked")
public boolean addAll(Collection<? extends Object> c) {
  return ((Collection<Object>)propertiesMap.get(ITEMS_PROPERTY).getValue()).addAll(c);
}

@SuppressWarnings("unchecked")
public void clear() {
  ((Collection<Object>)propertiesMap.get(ITEMS_PROPERTY).getValue()).clear();
}

public Object getAttributeValueFromObject(Object entity) throws DescriptorException {
  Map<String, PropertyWrapper> propertiesMap = ((DynamicEntityImpl)entity).getPropertiesMap();
  PropertyWrapper wrapper = propertiesMap.get(attributeName);
  // wrapper is never null
  return wrapper.getValue();
}

@SuppressWarnings("unchecked")
public boolean add(Object e) {
  return ((Collection<Object>)propertiesMap.get(ITEMS_PROPERTY).getValue()).add(e);
}

@SuppressWarnings("unchecked")
public Iterator<Object> iterator() {
  return ((Collection<Object>)propertiesMap.get(ITEMS_PROPERTY).getValue()).iterator();
}