[HTTPCLIENT-1558] Problematic OSGi bundling

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.3.5
• Fix Version/s: 4.3.6, 4.4 Final
• Component/s: HttpClient (classic)
• Environment: Linux, Karaf
• Assignee: Unassigned
• Reporter: Iwan Aucamp
• Created: 04/Oct/14 22:28
• Updated: 04/May/17 09:49
• Resolved: 05/Oct/14 11:23

Description

org.apache.httpcomponents:httpclient-osgi:4.3.5 includes some class files from org.apache.httpcomponents:httpcore-osgi:4.3.2 and also exports the same packages. This causes some problems for karaf (and presumably other OSGi containers).

karaf@root> osgi:install -s mvn:org.apache.httpcomponents/httpcore-osgi/4.3.2
Bundle ID: 56
karaf@root> osgi:install -s mvn:org.apache.httpcomponents/httpclient-osgi/4.3.4
Bundle ID: 57
karaf@root> osgi:update --force org.apache.httpcomponents.httpcore/4.3.2
karaf@root> osgi:update --force org.apache.httpcomponents.httpclient/4.3.4
Error executing command: Uses constraint violation. Unable to resolve bundle revision org.apache.httpcomponents.httpclient [57.1] because it is exposed to package 'org.apache.http.io' from bundle revisions org.apache.httpcomponents.httpcore [56.1] and org.apache.httpcomponents.httpcore [56.0] via two dependency chains.

Chain 1:
  org.apache.httpcomponents.httpclient [57.1]
    import: (&(osgi.wiring.package=org.apache.http.io)(version>=4.3.0)(!(version>=4.4.0)))
     |
    export: osgi.wiring.package=org.apache.http.io
  org.apache.httpcomponents.httpcore [56.1]

Chain 2:
  org.apache.httpcomponents.httpclient [57.1]
    import: (&(osgi.wiring.package=org.apache.http.impl.entity)(version>=4.3.0)(!(version>=4.4.0)))
     |
    export: osgi.wiring.package=org.apache.http.impl.entity; uses:=org.apache.http.io
    export: osgi.wiring.package=org.apache.http.io
  org.apache.httpcomponents.httpcore [56.0]

232 class files are in both bundles:

$ comm -1 -2 <( mop get org.apache.httpcomponents:httpclient-osgi:4.3.5 | head -1 | xargs -I{} bsdtar -tf {} | sort ) <( mop get org.apache.httpcomponents:httpcore-osgi:4.3.2 | head -1 | xargs -I{} bsdtar -tf {} | sort ) | grep '\.class$' | wc -l
232