public static void stripConfigurations(Configuration conf) {
    Set<String> hiddenSet = getHiddenSet(conf);
    stripConfigurations(conf, hiddenSet);
  }
Searches the given configuration object and replaces all the configuration values for keys
defined hive.conf.hidden.list by empty String

@param conf - Configuration object which needs to be modified to remove sensitive keys
common/src/java/org/apache/hadoop/hive/conf/HiveConfUtil.java