As a reference for this, see section 3.9.4 of the OSGi Core specification, “Overall Search Order”. Step 4 covers required bundles, and step 5 is the bundle’s embedded classpath.
Regards, Neil > On 10 Feb 2016, at 18:27, Thomas Watson <[email protected]> wrote: > > Classes found in the required bundles always take precedence over classes > contained in the local bundle. This is also true if you require the > system.bundle. > > Tom > > > > > > From: Lars Vogel <[email protected]> > To: Equinox development mailing list <[email protected]> > Date: 02/10/2016 12:02 PM > Subject: [equinox-dev] Require system.bundle question > Sent by: [email protected] > > > > Hi, > > In https://bugs.eclipse.org/bugs/show_bug.cgi?id=463292 > <https://bugs.eclipse.org/bugs/show_bug.cgi?id=463292>we are trying > to solve the issue that javax.annotations from the Java installation > should be used if a Java 7 runtime is available. If a Java 6 runtime > is used, then the javax.annotations implementation provided by the > plug-in should be used. > > For this we added: "Require-Bundle: system.bundle" to the MANIFEST.MF. > > This seems to work. If Java 7 is used as runtime, the > javax.annotations from the Java installation is exported by the > plug-in. And if Java 6 is used the implementation classes from the > plug-in are used. > > So my question is: is it assured that the system.bundle classes always > get priority (if available) over the plug-ins implementation? > > Or was the observed behavior pure luck and the order of which > implementation is exported is not defined by OSGi / Equinox? > > Thanks for the answer. I'm not sure if I was able to describe the > question well enough. > > Best regards, Lars > > -- > Eclipse Platform UI and e4 project co-lead > CEO vogella GmbH > > Haindaalwisch 17a, 22395 Hamburg > Amtsgericht Hamburg: HRB 127058 > Geschäftsführer: Lars Vogel, Jennifer Nerlich de Vogel > USt-IdNr.: DE284122352 > Fax (040) 5247 6322, Email: [email protected], Web: > http://www.vogella.com <http://www.vogella.com/> > _______________________________________________ > equinox-dev mailing list > [email protected] > To change your delivery options, retrieve your password, or unsubscribe from > this list, visit > https://dev.eclipse.org/mailman/listinfo/equinox-dev > <https://dev.eclipse.org/mailman/listinfo/equinox-dev> > > _______________________________________________ > equinox-dev mailing list > [email protected] > To change your delivery options, retrieve your password, or unsubscribe from > this list, visit > https://dev.eclipse.org/mailman/listinfo/equinox-dev
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