Preconditions.checkNotNull(identifier, "Node identifier should not be null");
LOG.trace("Starting a new map entry node");
startNode(identifier.getNodeType(), NodeTypes.MAP_ENTRY_NODE);
writeKeyValueMap(identifier.getKeyValues());
Preconditions.checkNotNull(identifier, "Node identifier should not be null");
LOG.trace("Starting a new map entry node");
startNode(identifier.getNodeType(), NodeTypes.MAP_ENTRY_NODE);
writeKeyValueMap(identifier.getKeyValues());