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Type: Bug
Resolution: Done
Priority: Major
Fix Version/s: 10.2.0.AM3
Affects Version/s: 10.2.0.AM2
Component/s: build, maven, rpm, target-platform
Labels:
None

Epic Link:
RHSCL 2.3 / devstudio alignment tasks
Git Pull Request:
https://github.com/jbosstools/jbosstools-target-platforms/pull/239, https://github.com/jbosstools/jbosstools-target-platforms/pull/240
Docs QE Status:
NEW

Latest bit of rpm madness...

This conflict occurred:

org.osgi.framework.BundleException: Could not resolve module: org.eclipse.m2e.wtp.jpa [931]
  Bundle was not resolved because of a uses contraint violation.
  org.osgi.service.resolver.ResolutionException: Uses constraint violation. Unable to resolve resource org.eclipse.m2e.wtp.jpa [osgi.identity; type="osgi.bundle"; version:Version="1.3.1.20160831-1005"; osgi.identity="org.eclipse.m2e.wtp.jpa"; singleton:="true"] because it is exposed to package 'org.slf4j' from resources org.slf4j.api [osgi.identity; type="osgi.bundle"; version:Version="1.7.2.v20121108-1250"; osgi.identity="org.slf4j.api"] and slf4j.api [osgi.identity; type="osgi.bundle"; version:Version="1.7.4"; osgi.identity="slf4j.api"] via two dependency chains.

Chain 1:
  org.eclipse.m2e.wtp.jpa [osgi.identity; type="osgi.bundle"; version:Version="1.3.1.20160831-1005"; osgi.identity="org.eclipse.m2e.wtp.jpa"; singleton:="true"]
    require: (osgi.wiring.bundle=org.slf4j.api)
     |
    provide: osgi.wiring.bundle: org.slf4j.api
  org.slf4j.api [osgi.identity; type="osgi.bundle"; version:Version="1.7.2.v20121108-1250"; osgi.identity="org.slf4j.api"]

Chain 2:
  org.eclipse.m2e.wtp.jpa [osgi.identity; type="osgi.bundle"; version:Version="1.3.1.20160831-1005"; osgi.identity="org.eclipse.m2e.wtp.jpa"; singleton:="true"]
    require: (osgi.wiring.bundle=org.slf4j.api)
     |
    provide: osgi.wiring.bundle; bundle-version:Version="1.7.2.v20121108-1250"; osgi.wiring.bundle="org.slf4j.api"
  org.slf4j.api [osgi.identity; type="osgi.bundle"; version:Version="1.7.2.v20121108-1250"; osgi.identity="org.slf4j.api"]
    require: (&(osgi.wiring.bundle=ch.qos.logback.classic)(&(bundle-version>=1.0.7)(!(bundle-version>=1.0.8))))
     |
    provide: osgi.wiring.bundle; bundle-version:Version="1.0.7.v20121108-1250"; osgi.wiring.bundle="ch.qos.logback.classic"
  ch.qos.logback.classic [osgi.identity; type="osgi.bundle"; version:Version="1.0.7.v20121108-1250"; osgi.identity="ch.qos.logback.classic"]
    import: (&(osgi.wiring.package=org.slf4j)(version>=1.7.0))
     |
    export: osgi.wiring.package: org.slf4j
  slf4j.api [osgi.identity; type="osgi.bundle"; version:Version="1.7.4"; osgi.identity="slf4j.api"]
	at org.eclipse.osgi.container.Module.start(Module.java:444)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1620)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1599)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1571)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1514)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340)

So, since slf4j.api is installed via 5 upstream projects (5 symlinks, actually, to rh-java-common):

$➔ find . -name "*slf4j.api*jar" -exec ls -l {} \;
lrwxrwxrwx 1 root root 81 Oct 11 13:00 ./share/eclipse/droplets/jgit/eclipse/plugins/slf4j.api_1.7.4.jar -> ../../../../../../../../../rh-java-common/root/usr/share/java/slf4j/slf4j-api.jar
lrwxrwxrwx 1 root root 81 Oct 12 05:19 ./share/eclipse/droplets/linuxtools-docker/eclipse/plugins/slf4j.api_1.7.4.jar -> ../../../../../../../../../rh-java-common/root/usr/share/java/slf4j/slf4j-api.jar
lrwxrwxrwx 1 root root 81 Oct 11 14:46 ./share/eclipse/droplets/egit-egit/eclipse/plugins/slf4j.api_1.7.4.jar -> ../../../../../../../../../rh-java-common/root/usr/share/java/slf4j/slf4j-api.jar
lrwxrwxrwx 1 root root 75 Oct 21 09:58 ./share/eclipse/droplets/mylyn-versions-git/eclipse/plugins/slf4j.api_1.7.4.jar -> ../../../../../../../../../rh-java-common/root/usr/share/java/slf4j/api.jar
lrwxrwxrwx 1 root root 81 Oct 11 14:46 ./share/eclipse/droplets/egit-mylyn/eclipse/plugins/slf4j.api_1.7.4.jar -> ../../../../../../../../../rh-java-common/root/usr/share/java/slf4j/slf4j-api.jar

... I removed it from the RPM in favour of the other bundle, which was already installed into the fedora/rhel eclipse.

BUT... since this RH SCL rh-java-common slf4j-api.jar exports a different, incompatible bundle name:

Bundle-SymbolicName: slf4j.api

than the one in devstudio's update site / target platform

Bundle-SymbolicName: org.slf4j.api

NOW, I'm getting this:

org.osgi.framework.BundleException: Could not resolve module: org.eclipse.m2e.wtp.jpa [931]
                Unresolved requirement: Require-Bundle: org.slf4j.api; bundle-version="1.6.2"

Snjezana got this too in m2e.core:

BundleException: Could not resolve module: org.eclipse.m2e.core.ui [866]
  Unresolved requirement: Require-Bundle: org.eclipse.m2e.maven.runtime; bundle-version="[1.7.0,1.8.0)"
    -> Bundle-SymbolicName: org.eclipse.m2e.maven.runtime; bundle-version="1.7.0.20160603-1931"; singleton:="false"
       org.eclipse.m2e.maven.runtime [876]
         Unresolved requirement: Require-Bundle: org.slf4j.api; bundle-version="1.6.2"

So... not sure what to do to solve this.

I suppose the best case would be for the m2e and w2e-wtp bundles to depend on the slf4j.api PACKAGES instead of BUNDLES, so that they can run on the fedora/rhel versions instead of those from the devstudio update site / target platform.