Supporting Apache HC5.x #486
Description
Is your feature request related to a problem? Please describe.
The current version only supports Apache HC4.5.x and/or OkHttp.
Our team are using Spring-cloud-openfeign with Apache HC4.5.x, but we got into a performance issue when having a surge of high concurrent requests without enough connections in the ConnectionPool. The slow warming up connection in the pool is likely due to the global locking mechanism in PoolingHttpClientConnectionManager. And the Apache HC5.x is promising to solve that at least from its release notes.
Describe the solution you'd like
Replace HC4 by HC5 or add HC5 as another option.
Describe alternatives you've considered
A workaround solution I have considered is to manually declare HttpClient, but it is a lot of boilerplate codes.