public static boolean isSchemaEvolutionEnabled(Configuration conf, boolean isAcid) {
    return isAcid || HiveConf.getBoolVar(conf, ConfVars.HIVE_SCHEMA_EVOLUTION);
  }
Sets up the job so that all necessary jars ar passed that contain classes from the given argument of this method.
@param conf jobConf instance to setup
@param classes the classes to look in jars for
@throws IOException
ql/src/java/org/apache/hadoop/hive/ql/exec/Utilities.java