final Map<String, Attribute> attributesToCopy = attributeSwapRequest.getAttributesToCopy();
this.copyAttributes(attributes, attributesToCopy);
final Principal currentUser = externalContext.getCurrentUser();
final String uid = currentUser.getName();
final IPersonAttributes originalUserAttributes = this.getOriginalUserAttributes(uid);
//Filter out unchanged attributes
for (final Iterator<Map.Entry<String, Object>> overrideAttrEntryItr = attributes.entrySet().iterator(); overrideAttrEntryItr.hasNext();) {
final Entry<String, Object> overrideAttrEntry = overrideAttrEntryItr.next();
final String attribute = overrideAttrEntry.getKey();
final Object originalValue = originalUserAttributes.getAttributeValue(attribute);
final Object overrideValue = overrideAttrEntry.getValue();
if (originalValue == overrideValue || (originalValue != null && originalValue.equals(overrideValue))) {
overrideAttrEntryItr.remove();
}
}