//tag::include[] package org.hibernate.validator.referenceguide.chapter08; //end::include[] import java.util.List; import javax.validation.ValidationProviderResolver; import javax.validation.spi.ValidationProvider; //tag::include[] public class OsgiServiceDiscoverer implements ValidationProviderResolver { @Override public List<ValidationProvider<?>> getValidationProviders() { //... return null; } } //end::include[]