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From "Gary Gregory (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HTTPCLIENT-1737) Apache HttpClient dependency on httpcore should specify tight version constraints
Date Wed, 20 Apr 2016 00:35:25 GMT

    [ https://issues.apache.org/jira/browse/HTTPCLIENT-1737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15249038#comment-15249038

Gary Gregory commented on HTTPCLIENT-1737:

Hi Sam,

Thanks for your report.

This is going to be either a lot of work or a lot less ;-) depending on what users need...

(1) We should address this in the work-in-progress version 5 to make sure we get it right
(2) Then decide which old 4.x.y branch to backport to if any.
(3) Which branches do you see this being needed: 4.0, 4.1, 4.2, 4.3, 4.4, and/or 4.5? 
(4) Releasing a new version of 4.2.x for example would not fix existing jars, then what?

Please opine.

> Apache HttpClient dependency on httpcore should specify tight version constraints
> ---------------------------------------------------------------------------------
>                 Key: HTTPCLIENT-1737
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1737
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: HttpClient
>            Reporter: Sam Davis
> Using Apache Http Client and Core in OSGi environments can fail if multiple versions
are present, which is common (for example, Eclipse Mars includes Http versions 4.3.x, but
many popular Eclipse plugins may include 4.2.x). The problem is that the dependency from the
Http Client OSGi bundle to the Http Core OSGi bundle does not specify an upper bound, e.g.
Cient 4.2.6 depends on Core 4.2.5 *or later.* This can cause Client 4.2.5 to use Core 4.3
which completely breaks any plugin that specifies tight version constraints on Client 4.2.6
and Core 4.2.5. See https://bugs.eclipse.org/bugs/show_bug.cgi?id=492042 for more details.
> When creating OSGi bundles, please specify exact version constraints in the manifest,
e.g. Import-Package: org.apache.http;version="[4.2.5,4.2.6)",

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