Upgrade Apache HttpClient to version 4.0 [SPR-6180] #10848
Please consider upgrading HttpClient to version 4.0 which is the latest stable (GA) version of the library. Commons HttpClient 3.1 is very likely to be deprecated / officially declared end of life very soon (3 - 6 months). There have been no bug fixes in the 3.x branch for over a year.
Patch attached. Unfortunately I was unable to fix the Ivy build which I am not very familiar with.
Affects: 3.0 RC1
17 votes, 20 watchers
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John Eckhart commented
I understand adding 4.0 (or even better 4.1), but is there really a need to remove the 3.x support? This will require any project that has implemented HttpClient 3.x and CommonsClientHttpRequestFactory in their app to upgrade the entire HttpClient stack in order to upgrade from Spring 3.0.x to Spring 3.1. I believe that HttpClient 4.x occupies a separate package namespace (and maven group/artifact id) from HttpClient 3.x and the Spring factories for each have separate names. Perhaps it would be better to
David Parks commented
Not sure if I should comment here or open a new request, but I'll note here first: Any use cases which require an HttpContext attribute to be set aren't covered in this implementation, and the extensions required make the whole thing so messy as to make using the Rest Template more of a burden than a benefit. Here is the particular case that I've been fussing with today to little avail, setting preemptive authentication (i.e. send basic authentication headers by default rather than performing 2 requests to authenticate):
The problem being that the RestTemplate implementation as it is has no support for setting HttpContext parameters (the template calls the Http.execute(HttpUriRequest) which uses only the non-accessible default HttpContext), there aren't any good way to set the default context parameters on the HttpClient in 4.x Apache HTTP Components. You end up needing to extend HttpClient to provide for default HttpContext params on the HttpClient object and the whole thing just becomes a spaghetti mess from there making the template more pain than pleasure.