anchor.diff:  ```java
   @Bean
   public JwtDecoder jwtDecoder(CacheManager cacheManager) {
  -    return NimbusJwtDecoder.withJwtSetUri(jwkSetUri)
  +    return NimbusJwtDecoder.withJwkSetUri(jwkSetUri)
               .cache(cacheManager.getCache("jwks"))
               .build();
   }
  
positive.code:     JwtGrantedAuthoritiesConverter grantedAuthoritiesConverter = new JwtGrantedAuthoritiesConverter();
      grantedAuthoritiesConverter.setAuthorityPrefix("ROLE_");
  
      JwtAuthenticationConverter authenticationConverter = new JwtAuthenticationConverter();
      jwtAuthenticationConverter.setJwtGrantedAuthoritiesConverter(authoritiesConverter);
      return jwtAuthenticationConverter;
  }
  ----
  
negative.code: 
       OAuth2TokenValidator<Jwt> withClockSkew = new DelegatingOAuth2TokenValidator<>(
              new JwtTimestampValidator(Duration.ofSeconds(60)),
              new JwtIssuerValidator(issuerUri));
  
       jwtDecoder.setJwtValidator(withClockSkew);
  
  