JBossFuse:karaf@root> features:install spring-dm-web
Error executing command: Could not start bundle mvn:org.apache.servicemix.bundles/org.apache.servicemix.bundles.spring-webmvc/3.2.12.RELEASE_2 in feature(s) spring-web-3.2.12.RELEASE_2: Uses constraint violation. Unable to resolve bundle revision org.apache.servicemix.bundles.spring-webmvc [295.0] because it is exposed to package 'javax.servlet.http' from bundle revisions org.apache.geronimo.specs.geronimo-servlet_3.0_spec [145.0] and javax.servlet-api [82.0] via two dependency chains.

Chain 1:
  org.apache.servicemix.bundles.spring-webmvc [295.0]
    import: (&(osgi.wiring.package=javax.servlet.http)(version>=2.4.0)(!(version>=4.0.0)))
     |
    export: osgi.wiring.package=javax.servlet.http
  org.apache.geronimo.specs.geronimo-servlet_3.0_spec [145.0]

Chain 2:
  org.apache.servicemix.bundles.spring-webmvc [295.0]
    import: (&(osgi.wiring.package=org.springframework.web.accept)(version>=3.2.12.RELEASE)(!(version>=3.3.0)))
     |
    export: osgi.wiring.package=org.springframework.web.accept; uses:=javax.servlet.http
  org.apache.servicemix.bundles.spring-web [294.0]
    import: (&(osgi.wiring.package=javax.servlet.http)(version>=2.4.0)(!(version>=4.0.0)))
     |
    export: osgi.wiring.package=javax.servlet.http
  javax.servlet-api [82.0]

JBossFuse:karaf@root> osgi:list -t 0 -l | grep '(82|294|295|145)'
[  82] [Active     ] [            ] [       ] [   30] mvn:javax.servlet/javax.servlet-api/3.1.0
[ 145] [Active     ] [            ] [       ] [   80] mvn:org.apache.geronimo.specs/geronimo-servlet_3.0_spec/1.0