com.sun.proxy。$ Proxy144.loadClientByClientId（未知来源）（错误500）

Question

我正在我的应用程序中实现令牌授权系统。 配置完所有内容后，我转到findById(@PathVariable("id") Long id) ，但出现500错误。 我插入完整的错误以及出现错误的类。

https://pastebin.com/SUWDmCRD（错误）localhost:8080/aut_svr/oauth/token

https://pastebin.com/NgVAukv8（Java类）

enter code here

https://pastebin.com/49HNWERP（Java第2类）

package it.eng.tz.template.application.commons.repository;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.JoinType;
import javax.persistence.criteria.Root;
import org.springframework.stereotype.Repository;
import it.eng.tz.template.application.commons.persistence.models.OauthClientDetails;
import it.eng.tz.template.application.commons.persistence.models.Operatore;

@Repository
public class OauthClientDao extends AbstractDao<String, OauthClientDetails> {
    /**
     * {@inheritDoc}
     */
    @Override
    protected Class<OauthClientDetails> getPersistentClass() {
        return OauthClientDetails.class;
    }
    /**
     * Effettua la ricerca di un {@link OauthClientDetails} in base alla username
     * @param clientId -la username dell'operatore
     * @return - {@link Operatore} trovato
     */
    public OauthClientDetails findByClientId( String clientId ) {
        CriteriaBuilder cb = createCriteriaBuilder();
        CriteriaQuery<OauthClientDetails> query = cb.createQuery(OauthClientDetails.class);
        Root<OauthClientDetails> root = query.from(OauthClientDetails.class);
        root.fetch("auths", JoinType.INNER);
        query.select(root);
        query.where(cb.equal(root.get("clientId"), clientId));
        OauthClientDetails result = getSession().createQuery(query).getSingleResult();
        return result;
    }
}