List<Converter> converters = converterFilter.filter(lookupStrategyTransformation.lookupConverters(source, result), source, result);
if (converters.size() > 1)
{
throw new ResolverException(CoreMessages.transformHasMultipleMatches(source.getType(), result.getType(), converters.get(0), converters.get(1)));
}
Transformer converter = (converters.size() == 0) ? null : converters.get(0);