code: @Nonnull
    @SuppressFBWarnings ("EI_EXPOSE_REP2")
    public final UnifiedResponse setContent (@Nonnull final byte [] aContent,
                                             @Nonnegative final int nOfs,
                                             @Nonnegative final int nLen)
    {
      ValueEnforcer.isArrayOfsLen (aContent, nOfs, nLen);
      if (hasContent ())
        logInfo ("Overwriting content with byte array!");
      m_aContentArray = aContent;
      m_nContentArrayOfs = nOfs;
      m_nContentArrayLength = nLen;
      m_aContentISP = null;
      return this;
    }
docs: Set the response content. To return an empty response pass in a new empty
  array, but not <code>null</code>.
  
  @param aContent
  The content to be returned. Is <b>not</b> copied inside! May not be
  <code>null</code> but maybe empty.
  @param nOfs
  The content offset to start at. Must be &ge; 0.
  @param nLen
  The content length to use. Must be &ge; 0 and &le; than the content
  length!
  @return this