Validate httpcore 5.4 compatibility

[strangelookingnerd]

Hey there, I noticed some issues when upgrading to the latest httpcore in jenkinsci/apache-httpcomponents-client-5-api-plugin#107

I am not entirely sure what the compatibility between client and core is supposed to be (or why they are separate packages with separate release cycles…). I could not find any documentation on that matter either.

Just wanted to raise awareness on that matter and offer my help to work on a solution.

[ok2c]

@strangelookingnerd What is the reason you want the stable 5.5.x branch upgraded to different minor version of HttpCore?

[garydgregory]

Hello @ok2c
Do we document this expectation?
I expect that latest to client and core within major release lines to work hand in hand. For example

• The latest 4.x client and code should work together.
• The latest 5.x client and core should work together.

[ok2c]

I expect that latest to client and core within major release lines to work hand in hand

@garydgregory They do.

[strangelookingnerd]

I expect that latest to client and core within major release lines to work hand in hand

@garydgregory They do.

To me it seems that the latest released version of client (5.5.1) is not compatible with the latest released version of core (5.4).

I could not find any documentation on this being the case. Many projects that will try to keep all their dependencies updated will also run into the same issue.

Since the version numbers are diverged, it is also not implied by the major version used.

Not arguing that this isn't totally fine as there is nothing stating otherwise. Still it would be nice to have that information documented somewhere or provide an alternative way to help users understand the compatibility between the libraries. E.g. by merging the projects and develop/release them together or syncing the version numbers.

As I said, I'd be happy to help. Just need to know what the expectations are.

[ok2c]

To me it seems that the latest released version of client (5.5.1) is not compatible with the latest released version of core (5.4).

@strangelookingnerd The latest released version of HttpClient is 5.6-alpha1 and am not aware of any incompatibilities with HttpCore 5.4 given it is based on HttpCore 5.4.x branch.

What are specific incompatibilities you are referring to?

[strangelookingnerd]

To me it seems that the latest released version of client (5.5.1) is not compatible with the latest released version of core (5.4).

@strangelookingnerd The latest released version of HttpClient is 5.6-alpha1 and am not aware of any incompatibilities with HttpCore 5.4 given it is based on HttpCore 5.4.x branch.

What are specific incompatibilities you are referring to?

Okay, I should have been more specific. The latest released non-alpha versions are not compatible.

[ok2c]

@strangelookingnerd That alpha will become GA next week. But that does not matter. What specific incompatibilities are you referring to?

[ok2c]

@strangelookingnerd I found the problem. Please raise a JIRA for the defect.

[ERROR] /home/oleg/src/apache.org/httpcomponents/httpclient/httpclient5/src/main/java/org/apache/hc/client5/http/impl/io/DefaultHttpClientConnectionOperator.java:[61,29] error: cannot find symbol
[ERROR]   symbol:   class SocketSupport
[ERROR]   location: package org.apache.hc.core5.io

[strangelookingnerd]

Created https://issues.apache.org/jira/browse/HTTPCLIENT-2408