@Test
public void testNullBytesArray() {

    LOG.info("testNullBytesArray");
    try {
        final byte[] nullArray = null;
        //noinspection ConstantConditions
        HexString.getHexString(nullArray);
    } catch (final AssertionError | IllegalArgumentException ignored) {
        return;
    }
    Assert.fail("Wrong: null accepted by @Nonnull parameters!");
}