ConfigWatch no suitable HttpMessageConverter because of double // and 301 MOVED_PERMANENTLY

[kozla13]

Describe the bug

When using Spring Cloud Consul Config, the application logs a warning during configuration watch execution indicating that the response from Consul cannot be parsed. The error suggests that Consul returns a response with content type text/html;charset=utf-8, but Spring expects a JSON response that can be converted into List.

consul responds with : "301 MOVED_PERMANENTLY"
line: https://github.com/spring-cloud/spring-cloud-consul/blob/00397e92b2d71f66107ad00c1f5a76c53398c952/spring-cloud-consul-config/src/main/java/org/springframework/cloud/consul/config/ConfigWatch.java#L159

spring.config.import=consul:/test
As a result, the Consul Key/Value configuration for the specified context is not read successfully.

Observed behavior

The following warning is logged repeatedly by the ConfigWatch task:

WARN --- [TaskScheduler-1] o.s.cloud.consul.config.ConfigWatch :
Error querying consul Key/Values for context '/test/'.
Message: Could not extract response: no suitable HttpMessageConverter found for response type
[java.util.List<org.springframework.cloud.consul.model.http.kv.GetValue>]
and content type [text/html;charset=utf-8]

Expected behavior

Spring Cloud Consul Config should successfully query the KV endpoint for the configured context and deserialize the response into GetValue objects without errors.

Environment

Spring Boot: 4.0.1

Spring Cloud version: 2025.1.0

Spring Cloud Consul version: 5.0.0

Consul version: 1.22.2

Java version: 25

[ryanjbaxter]

Can you provide a complete, minimal, verifiable sample that reproduces the problem? It should be available as a GitHub (or similar) project or attached to this issue as a zip file.

[kozla13]

consul-demo.zip

you need a running consul on localhost