When you do context.getBundles(), is there any way to distinguish the System
bundle from other bundles (not Felix specific, hopefully OSGi spec)?
Something like a marker or flag?
Chris
On 12/14/06, Chris Custine <[EMAIL PROTECTED]> wrote:
At this point I have tracked it back to spring-osgi, so let me continue to
research it and I will post the results on both lists here shortly.
Chris
On 12/14/06, Richard S. Hall <[EMAIL PROTECTED]> wrote:
>
> Chris Custine wrote:
> > I did figure out the issue about getResources being final but at this
> > point
> > I am not sure this is the problem yet (it certainly will be
> > eventually). I
> > ran all of this through the debugger and when doing a
> > bundle.getResources,
> > the call is resolving up through a SystemBundleContentLoader which
> does
> > this:
> >
> > public Enumeration getResources(String name)
> > {
> > try
> > {
> > return getClass().getClassLoader().getResources(name);
> > }
> > catch (IOException ex)
> > {
> > return null;
> > }
> > }
> >
> > so this getClassLoader() call always resolves to
> > sun.misc.Launcher$AppClassLoader which has the main application
> classpath
> > and returns the wrong resources. This doesn't seem right to me, but I
> > may
> > be missing something.
>
> Nope, I agree. With you, I just posted a follow up message. I guess you
> saved me some investigation time...I will look at this more closely and
> see what I can come up with.
>
> -> richard
>
> >
> > Chris
> >
> >
> > On 12/14/06, Richard S. Hall <[EMAIL PROTECTED]> wrote:
> >>
> >> Richard S. Hall wrote:
> >> > Yeah, when I was thinking about it, I could think of an "elegant"
> >> > solution. Now you have confirmed that. :-)
> >>
> >> Sorry, that should say, "...I could NOT think..."
> >>
> >> -> richard
> >>
> >> >
> >> > -> richard
> >> >
> >> > Thomas Watson wrote:
> >> >> Currently we do not do anything. I am considering making a
> framework
> >> >> extension bundle fragment that adds a bundle classloader that can
> be
> >> >> used on J2SE 1.5. The problem I have is that the core Equinox
> >> >> framework is compiled against the OSGi EE minimum 1.1 library. I
> >> >> could add a bundle classloader implementation to the core
> framework
> >> >> that extends the existing bundle classloader and overrides the
> >> >> getResources method. Then at runtime pick the correct
> implementation
> >> >> of the bundle classloader depending on the level of the EE. But
> this
> >> >> would force me to compile the core framework against J2SE 1.5.
> >> >> Something I'm not willing to do at this point. For me it is
> probably
> >> >> better to stick this extra class (compiled against J2SE 1.5) in a
> >> >> framework fragment, then runtime can load that version of the
> bundle
> >> >> classloader if it is installed and resolved. I would make that
> >> >> fragment bundle have a required EE of J2SE 1.5 so it could not be
> >> >> installed on an older VM.
> >> >>
> >> >> Tom
> >> >>
> >> >>
> >> >>
> >> >>
> >> >> "Richard S. Hall" <[EMAIL PROTECTED]> 12/14/2006 07:35 AM
> >> >> Please respond to
> >> >> felix-dev@incubator.apache.org
> >> >>
> >> >>
> >> >> To
> >> >> felix-dev@incubator.apache.org
> >> >> cc
> >> >>
> >> >> Subject
> >> >> Re: bundle.getResources behavior
> >> >>
> >> >>
> >> >>
> >> >>
> >> >>
> >> >>
> >> >> Thomas Watson wrote:
> >> >>
> >> >>> This is probably because the ClassLoader.getResources method is
> >> >>> final on
> >> >>
> >> >>
> >> >>> J2SE 1.4 and earlier. In J2SE 1.5 they removed the 'final' from
> >> >>> this method. This makes it impossible to implement a "correct"
> >> >>> bundle classloader on J2SE 1.4 and earlier WRT
> >> >>> ClassLoader.getResources. The implementation of the final
> >> >>> ClassLoader.getResources method always
> >> >> checks
> >> >>> the parent classloader first, there is no way for the OSGi Bundle
> >> >>> class loader to override this behavior. We have the exact same
> >> >>> situation in Equinox.
> >> >>>
> >> >>>
> >> >>
> >> >> Ugly.
> >> >>
> >> >> Tom, so do you have some check in place to do the correct thing
> when
> >> >> running on 1.5 as opposed to < 1.5 ? If so, what approach do you
> use?
> >> >>
> >> >> -> richard
> >> >>
> >> >>
> >> >>> Tom
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>> "Chris Custine" <[EMAIL PROTECTED]> 12/14/2006 12:37 AM
> >> >>> Please respond to
> >> >>> felix-dev@incubator.apache.org
> >> >>>
> >> >>>
> >> >>> To
> >> >>> felix-dev@incubator.apache.org
> >> >>> cc
> >> >>>
> >> >>> Subject
> >> >>> bundle.getResources behavior
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>> My understanding of the OSGi spec is that Bundle.getResources()
> >> >>> should only
> >> >>> look in the System classpath if the package name is listed in the
> >> >>> org.osgi.framework.bootdelegation property, is that correct? I
> am
> >> >> working
> >> >>
> >> >>> on a problem where Felix is returning a resource from a
> >> non-bundle jar
> >> >>> (Felix is embedded) that is on the main application
> classpath. Any
> >> >> ideas?
> >> >>
> >> >>> Thanks,
> >> >>> Chris
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>
> >> >>
> >> >>
> >>
> >
>
