resolver = new CachingProcessor<ValueHolder<SchemaTree>, ValueHolder<SchemaTree>>(
chain1.getProcessor(), SchemaHolderEquivalence.INSTANCE
);
final SchemaDigester digester = new SchemaDigester(library);
final ValidatorBuilder keywordBuilder = new ValidatorBuilder(library);
ProcessorChain<SchemaContext, ValidatorList> chain2
= ProcessorChain.startWith(digester).chainWith(keywordBuilder);