code: @Nullable
    @ReturnsMutableCopy
    public static ICommonsList <String> readStreamLines (@WillClose @Nullable final InputStream aIS,
                                                         @Nonnull @Nonempty final Charset aCharset)
    {
      return readStreamLines (aIS, aCharset, 0, CGlobal.ILLEGAL_UINT);
    }
docs: Get the content of the passed stream as a list of lines in the passed
  character set.
  
  @param aIS
  The input stream to read from. May be <code>null</code>.
  @param aCharset
  The character set to use. May not be <code>null</code>.
  @return <code>null</code> if the input stream is <code>null</code>, the
  content lines otherwise.