Re: [osgi-dev] Static variable not so static after bundle update.

[Erwin Hogeweg]

Erwin Hogeweg Clare Controls, Inc. 7519 Pennsylvania Ave. Suite 104 Sarasota, FL 34243 (561) 306 7395 erwin.hoge...@clarecontrols.com On Feb 3, 2013, at 3:15 PM, Neil Bartlett wrote: On Sun, Feb 3, 2013 at 8:05 PM, Erwin Hogeweg <erwin.hoge...@clarecontrols.com> wrote: Neil, Thank for the quick reply. You need to show where the getInstance() method is called. Since you don't call it from your start() or stop() method, I suspect you must be calling it from another bundle or a thread. Correct, the getInstance() is called from another bundle through a registered service. Is the bundle exporting the service interface package, in addition to registering the service instance? No, the API is in a separate bundle. If so, the importing bundle will be fixed to that export until a Refresh Packages operation is done. 1) Don't export the service interface package from the same bundle that registers the service instance. For example have a third bundle that only contains pure APIs, no implementation code. Checked. 2) Refresh packages (use the "refresh" command from the Gogo shell). This causes OSGi to recalculate the package wiring graph... now the importing bundle can be rewiring to the new version of the export. Ah, that seems to do something. I need to uninstall the bundle first, than run refresh, and than install the bundle for something to happen. (running into another 'issue' now, but it seems to solve the initial problem so now I can sleep again...). It's important to understand that package wirings in OSGi are *not* particularly dynamic, because calculating them is an expensive operation. After an update (or better, after a batched series of updates/installs/uninstalls) you should call the refresh command to indicate to OSGi that you have finished and it can now go ahead and perform the rewiring. Thank, will keep that in mind. Thanks for the insight Neil, you help is appreciated. Kind Regards, Erwin

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