Method toMap

jaxrs2/src/main/java/feign/jaxrs2/JAXRSClient.java:131–133

(MultivaluedMap<String, String> headers)

  }

  private Map<String, Collection<String>> toMap(MultivaluedMap<String, String> headers) {
    return headers.entrySet().stream().collect(Collectors.toMap(Entry::getKey, Entry::getValue));
  }
}