code: public static void readFileLines (@Nullable final File aFile,
                                      @Nonnull final Charset aCharset,
                                      @Nonnull final List <String> aTargetList)
    {
      if (aFile != null)
        StreamHelper.readStreamLines (FileHelper.getInputStream (aFile), aCharset, aTargetList);
    }
docs: Get the content of the passed file as a list of lines, whereas each line
  does not contain a separator.
  
  @param aFile
  The file to read. May be <code>null</code>.
  @param aCharset
  The character set to use. May not be <code>null</code>.
  @param aTargetList
  The target list to be filled. May not be <code>null</code>.