@Override
public Set<K> keySet() {
assertRemoteCacheManagerIsStarted();
// Use default scope
BulkGetKeysOperation op = operationsFactory.newBulkGetKeysOperation(0);
Set<byte[]> result = op.execute();
Set<K> toReturn = new HashSet<K>();
for (byte[] keyBytes : result) {
K key = (K) bytes2obj(keyBytes);
toReturn.add(key);
}