private UnsupportedOperationException newUnsupportedOperationException(Inclusion inclusion) {
        return new UnsupportedOperationException(
            "Unknown inclusion '" + inclusion + "'."
        );
    }
Default implementation of the {@link EnumField}-interface.

@author Emil Forslund
@since  3.0.10
runtime-parent/runtime-field/src/main/java/com/speedment/runtime/field/internal/EnumFieldImpl.java