On Wed, Nov 14, 2012 at 11:34 AM, Tom Schindl
<tom.schindl@xxxxxxxxxxxxxxx> wrote:
Am 14.11.12 08:13, schrieb Gunnar Wagenknecht:
> Am 14.11.2012 01:30, schrieb Neil Bartlett:
>> I really feel that the problem is in the launcher, so that's where it
>> needs to be fixed, i.e. by setting the osgi.parentClassloader=app system
>> property.
>
> I agree. So the wrong property is only used if the Equinox is launched
> using the binary executable or also when launched using "java -jar
> org.eclipse.osgi..."?
>
Please note that we can't simply change the launcher to use the
ext-classpath because then we'd most likely break other Eclipse plugins!
I really don't think so. I had a brief chat with Tom W about the reason why Eclipse uses the boot loader as its parent. Apparently it dates back to Eclipse 2.x (pre-OSGi) and conflicts with the Xerces XML parser that was being shipped in Sun JREs around that time. You see the irony, I hope.... back then it was necessary to avoid exposing Eclipse to non-JSR libraries in the extension loader. Now we WANT to expose Eclipse to non-JSR libraries in the extension loader. You can't have your cake and eat it.
Why not try running Eclipse right now with osgi.parentClassLoader=app, and find out what happens?
We only change the classpath for a specific fragment. At least this is
how I interpreted Tom Watsons suggestion to use the above format.
I just don't see how it's possible for the framework to change its own classpath for different fragments. Maybe Tom has some ideas. However I think this solution could come with its own set of plugin breakages, if it even works at all.
> I think the dilema is that anything that requires a "fix" will make
> adoption harder because people won't be able to use released versions
> (eg., Juno) for JavaFX development. Is that correct?
>
Right. I could live with the fact that Juno SR2 introduces support for
such a custom header and people are required to use that one - the more
eclipse version can be supported the better in general.
Tom
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