private static int compareSignatures(Executable lhs, Executable rhs) {
      return compareSignatures(lhs.getParameterTypes(), rhs.getParameterTypes());
    }
Compare parameter signatures of executables.
@param lhs left-hand side
@param rhs right-hand side
@return 0 if equal, +/- 1 if left &lt;/&gt; than right
standalone-metastore/metastore-common/src/main/java/org/apache/hadoop/hive/metastore/properties/SerializationProxy.java