public static void merge(Configuration destConf, Configuration srcConf) {
    for (Map.Entry<String, String> e : srcConf) {
      destConf.set(e.getKey(), e.getValue());
    }
  }
Merge two configurations.
@param destConf the configuration that will be overwritten with items from the srcConf
@param srcConf  the source configuration
hbase-common/src/main/java/org/apache/hadoop/hbase/HBaseConfiguration.java