@Override
	public ByteBufFormat byteBufFormat() {
		if (byteBufFormat == SIMPLE) {
			return ByteBufFormat.SIMPLE;
		}
		else if (byteBufFormat == HEX_DUMP) {
			return ByteBufFormat.HEX_DUMP;
		}
		throw new UnsupportedOperationException("ReactorNettyLoggingHandler isn't using the classic ByteBufFormat.");
	}
@Test
	void shouldThrowUnsupportedOperationExceptionWhenByteBufFormatIsCalled() {
		assertThatExceptionOfType(UnsupportedOperationException.class)
				.isThrownBy(() -> defaultCharsetReactorNettyLoggingHandler.byteBufFormat());
	}