Personally, I implement my own BundleInfo to represent bundles installed in a distributed system.
> On 29 Feb 2016, at 17:57, David Jencks <david.a.jen...@gmail.com> wrote: > > Sure, but I can’t imagine any such use case. I can imagine using the little > bundles at compile time to make sure you know which specs you depend on, but > I’m mystified how this could be useful at runtime. > > david jencks > >> On Feb 29, 2016, at 9:51 AM, Daniel McGreal <d.j.mcgr...@gmail.com> wrote: >> >> I think he means (which is actually aligned with my use case) that I can use >> the classes from the spec this way, when I don’t need an implementation. >> >>> On 29 Feb 2016, at 17:49, David Jencks <david.a.jen...@gmail.com> wrote: >>> >>> As far as I’m concerned, these little bundles are there to make it easier >>> for implementers of a particular spec to include that spec’s api in their >>> implementation bundle. It doesn’t do you any good to include the api >>> without an implementation at runtime. Thus, I think the quote below is >>> highly misleading. >>> >>> david jencks >>> >>>> On Feb 29, 2016, at 9:20 AM, Markus Rathgeb <maggu2...@gmail.com> wrote: >>>> >>>> FYI >>>> >>>> "But what if you want to use the APIs at runtime? To support using the >>>> APIs at runtime, OSGi has now made the companion code for individual >>>> specifications available as individual companion code bundles." >>>> http://blog.osgi.org/2015/08/more-jars-on-maven-central-and-jcenter.html >>>> >>>> 2016-02-29 8:40 GMT+01:00 Achim Nierbeck <bcanh...@googlemail.com>: >>>>> Hi >>>>> >>>>> it's a bad practice to provide the compendium or core osgi bundles, as >>>>> those >>>>> contain far more packages then required. >>>>> Usually the services implementing those apis should provide the >>>>> implemented >>>>> services. As can be seen for eventadmin, >>>>> configuration admin service and the http service in karaf. >>>>> >>>>> regards, Achim >>>>> >>>>> >>>>> 2016-02-28 22:15 GMT+01:00 Daniel McGreal <d.j.mcgr...@gmail.com>: >>>>>> >>>>>> Hi Karaf users! >>>>>> >>>>>> Installing the Compendium in a feature, e.g. with the following primitive >>>>>> example, restarts the console, because dependent bundles refresh to wire >>>>>> against it. >>>>>> >>>>>> <?xml version="1.0" encoding="UTF-8" standalone="yes"?> >>>>>> <features xmlns="http://karaf.apache.org/xmlns/features/v1.3.0"; >>>>>> name="cmpn"> >>>>>> <feature name="cmpn" description="cmpn" >>>>>> version="2.5.0.BUILD-SNAPSHOT"> >>>>>> <bundle>mvn:org.osgi/org.osgi.compendium/5.0.0</bundle> >>>>>> </feature> >>>>>> </features> >>>>>> >>>>>> This is causing me some problems, for example, after the shell restart >>>>>> feature:(un)install commands result in an NPE. >>>>>> >>>>>> java.lang.NullPointerException >>>>>> at >>>>>> org.apache.karaf.features.internal.region.SubsystemResolver.resolve(SubsystemResolver.java:216)[9:org.apache.karaf.features.core:4.0.4] >>>>>> at >>>>>> org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:263)[9:org.apache.karaf.features.core:4.0.4] >>>>>> at >>>>>> org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1089)[9:org.apache.karaf.features.core:4.0.4] >>>>>> at >>>>>> org.apache.karaf.features.internal.service.FeaturesServiceImpl$1.call(FeaturesServiceImpl.java:985)[9:org.apache.karaf.features.core:4.0.4] >>>>>> at >>>>>> java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_60] >>>>>> at >>>>>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[:1.8.0_60] >>>>>> at >>>>>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[:1.8.0_60] >>>>>> at java.lang.Thread.run(Thread.java:745)[:1.8.0_60] >>>>>> >>>>>> Is there a way to prevent this from happening? >>>>>> >>>>>> Best, Dan. >>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> >>>>> Apache Member >>>>> Apache Karaf <http://karaf.apache.org/> Committer & PMC >>>>> OPS4J Pax Web <http://wiki.ops4j.org/display/paxweb/Pax+Web/> Committer & >>>>> Project Lead >>>>> blog <http://notizblog.nierbeck.de/> >>>>> Co-Author of Apache Karaf Cookbook <http://bit.ly/1ps9rkS> >>>>> >>>>> Software Architect / Project Manager / Scrum Master >>>>> >>> >> >
