anchor.diff:      extends JsonDeserializer<Date>
     {
       @Override
  -    public Date deserialize( @javax.annotation.Nonnull final JsonParser parser, @javax.annotation.Nonnull final DeserializationContext context )
  +    public Date deserialize( final JsonParser parser, final DeserializationContext context )
         throws IOException
       {
         return parse( newDateFormatter(), parser.getText() );
  
positive.code:     }
    }
  
    @javax.annotation.Nonnull
    static Date parse( @javax.annotation.Nonnull final DateFormat formatter, @javax.annotation.Nonnull final String source )
      throws IOException
    {
      try
  
negative.code:     extends JsonSerializer<Date>
    {
      @Override
      public void serialize( final Date date,
                             final JsonGenerator generator,
                             final SerializerProvider provider )
        throws IOException
      {
        generator.writeString( newDateFormatter().format( date ) );
  