How to use

EcoreUtil$Copier

in

org.eclipse.emf.ecore.util

Collection<EObject> newObjectsToAttach = copier.copyAll(objectsToDetach);
copier.copyReferences();
 EObject copiedObjectToChange = copier.get(objectToChange);
    featureChange.setReferenceValue(copier.get(referenceValue));
      referenceValues.set(copier.get(referenceValue));
   referenceValues.set(copier.get(referenceValue));

final EObject result = super.copy(eobject);
if (result instanceof JvmWildcardTypeReference) {
  final JvmWildcardTypeReference wildcardType = (JvmWildcardTypeReference) result;

EObject oldInstance = instance;
instance = EmfUtils.clone(instance);
Copier copier = new Copier(false, false);

Collection<EObject> newObjectsToAttach = copier.copyAll(objectsToDetach);
copier.copyReferences();
 EObject copiedObjectToChange = copier.get(objectToChange);
    featureChange.setReferenceValue(copier.get(referenceValue));
      referenceValues.set(copier.get(referenceValue));
   referenceValues.set(copier.get(referenceValue));

EPackage outputPackage = (EPackage)copier.copy(originalPackage);
copier.copyReferences();
outputResource.getContents().add(outputPackage);
collapseEmptyPackages(outputPackage);

EStructuralFeature.Setting setting = getTarget(eReference, eObject, copyEObject);
if (setting != null)
    EObject copyReferencedEObject = get(referencedEObject);
    if (copyReferencedEObject == null)
   Object copyReferencedEObject = get(value);
   if (copyReferencedEObject == null)

copier.copyAll(propertyFeatureList);
copier.copyReferences();
for (Map.Entry<EObject, EObject> entry : copier.entrySet())
  EObject copyEObject = copier.get(targetEObject);
  if (copyEObject != null)

for (Map.Entry<EObject, EObject> entry  : entrySet())
    if (!eReference.isContainment() && !eReference.isContainer())
     copyReference(eReference, eObject, copyEObject);
    FeatureMap copyFeatureMap = (FeatureMap)getTarget(eStructuralFeature, eObject, copyEObject);
    if (copyFeatureMap != null)
       Object copyReferencedEObject = get(referencedEObject);
       if (copyReferencedEObject == null && referencedEObject != null)
       copyFeatureMap.add(getTarget(featureMap.getEStructuralFeature(k)), featureMap.getValue(k));

copier.copyAll(propertyFeatureList);
copier.copyReferences();
for (Map.Entry<EObject, EObject> entry : copier.entrySet())
  EObject copyEObject = copier.get(targetEObject);
  if (copyEObject != null)

EStructuralFeature.Setting setting = getTarget(eReference, eObject, copyEObject);
if (setting != null)
    EObject copyReferencedEObject = get(referencedEObject);
    if (copyReferencedEObject == null)
   Object copyReferencedEObject = get(value);
   if (copyReferencedEObject == null)

for (Map.Entry<EObject, EObject> entry  : entrySet())
    if (!eReference.isContainment() && !eReference.isContainer())
     copyReference(eReference, eObject, copyEObject);
    FeatureMap copyFeatureMap = (FeatureMap)getTarget(eStructuralFeature, eObject, copyEObject);
    if (copyFeatureMap != null)
       Object copyReferencedEObject = get(referencedEObject);
       if (copyReferencedEObject == null && referencedEObject != null)
       copyFeatureMap.add(getTarget(featureMap.getEStructuralFeature(k)), featureMap.getValue(k));

final JvmTypeReference copy = (JvmTypeReference) copier.copy(type);
copier.copyReferences();
return copy;

T copy = (T) copier.copy(original);
copier.copyReferences();
return copy;

    (StructuralFeature) eObject);
} else {
  super.copyAttribute(eAttribute, eObject, copyEObject);
super.copyAttribute(eAttribute, eObject, copyEObject);

EObject copyEObject = createCopy(eObject);
if (copyEObject != null)
 put(eObject, copyEObject);
 EClass eClass = eObject.eClass();
 for (int i = 0, size = eClass.getFeatureCount(); i < size; ++i)
    copyAttribute((EAttribute)eStructuralFeature, eObject, copyEObject);
    if (eReference.isContainment())
     copyContainment(eReference, eObject, copyEObject);
 copyProxyURI(eObject, copyEObject);

AbstractElement clone = (AbstractElement) copier.copy(element);
copier.copyReferences();
return clone;

EObject copyEObject = createCopy(eObject);
if (copyEObject != null)
 put(eObject, copyEObject);
 EClass eClass = eObject.eClass();
 for (int i = 0, size = eClass.getFeatureCount(); i < size; ++i)
    copyAttribute((EAttribute)eStructuralFeature, eObject, copyEObject);
    if (eReference.isContainment())
     copyContainment(eReference, eObject, copyEObject);
 copyProxyURI(eObject, copyEObject);

AbstractElement clone = (AbstractElement) copier.copy(result);
copier.copyReferences();
return clone;

public void merge(BuildPlan source) {
  Assert.isNotNull(source);
  @SuppressWarnings("serial")
  EcoreUtil.Copier copier = new EcoreUtil.Copier() {
    @Override
    protected EObject createCopy(EObject source) {
      return BuildPlan.this; // TODO This will certainly fail for nested plans!
    };
    @Override
    protected void copyAttribute(EAttribute eAttribute, EObject eObject, EObject copyEObject) {
      super.copyAttribute(eAttribute, eObject, copyEObject);
    }
    @Override
    protected void copyContainment(EReference eReference, EObject eObject, EObject copyEObject) {
      // XXX do nothing, throws a ClassCastException due to overridded createCopy() method
    }
  };
  copier.copy(source);
  // FIXME implement proper merge
  getParameterDefinitions().clear();
  getParameterDefinitions().addAll(EcoreUtil.copyAll(source.getParameterDefinitions()));
  getFlags().clear();
  getFlags().addAll(source.getFlags());
  getHealthReports().clear();
  getHealthReports().addAll(EcoreUtil.copyAll(source.getHealthReports()));
  getAttributes().clear();
  getAttributes().putAll(source.getAttributes());
}

  return copier.copy(eObject);
} else if (notifier instanceof Resource) {
  Resource resource = (Resource) notifier;
    EObject clonedEObject = copier.copy(eObject);
    clonedResource.getContents().add(clonedEObject);