Hi,
I dont think that this is final solution for that problem.
The class finding search order is defined in OSGi:
https://docs.osgi.org/specification/osgi.core/7.0.0/framework.module.html#framework.module.overallsearchorder
That mean finding a class to be loaded will be initially done
using the boot delegation (Step 2 in this case). If defined
correctly the following will happen:
Java 1.8 - delegate to parent class loader an load
javax.annotation from there (no matter, if you have an bundle
provided for that package)
Java 11 - cannot find javax.annotation over boot-delegation, go
on with Import-Package or Require-Bundle
Either provide a org.osgi.framework.bootdelegation=javax.* as
property to activate boot-delegation or you can use the existing
profiles instead.
The Profiles are defined in Equinox:
https://github.com/eclipse/rt.equinox.framework/blob/master/bundles/org.eclipse.osgi/JavaSE-1.8.profile
You can find the property: org.osgi.framework.bootdelegation
there with a definition for javax.*
To make Equinox use this profile (I dont know, if this happens by
default) via launcher, you should provide the
osgi.java.profile="" class="moz-txt-link-freetext" href="file:///">file:/<your-path>/JavaSE-1.8.profile
If you take the profile, then you have to additionally provide
the property: osgi.java.profile.bootdelegation=override, so that
Equinox takes the profile boot delegation entries. instead of
already defined ones
With the correct boot-delegation configuration, always that same
class loader will be taken for this constellation, no matter, if
in Java 1.8 or 11. The same applies to JAXB problems.
https://wiki.eclipse.org/Equinox_Boot_Delegation
Regards,
Mark
Am 21.08.20 um 22:43 schrieb Brian de
Alwis:
Unfortunately javax.annotation package-uses
issues have returned :(
The issue only occurs on Java 8 and has been
seen in the wild. I
suspect it has not been more widespread due to increased
adoption of Java 11.
If you have concerns, please comment on
Bug 566085.
Brian.
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Mark Hoffmann
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