public static List<Map.Entry<String, String>> getKeyValues(Configuration conf, String key) {
    return getKeyValues(conf, key, KVP_DELIMITER);
  }
Retrieve a list of key value pairs from configuration, stored under the provided key
@param conf configuration to retrieve kvps from
@param key  key under which the key values are stored
@return the list of kvps stored under key in conf, or null if the key isn't present.
@see #setKeyValues(Configuration, String, Collection, char)
hbase-server/src/main/java/org/apache/hadoop/hbase/util/ConfigurationUtil.java