OSGI two instance of the same service

Question

I do have a service "A" this service will be consumed from 11 other components. If I check all available services via the osgi console I do see only one instance and all 11 components consuming this service.

But for some strange reason, I don't understand, two of the components don't use the same service instance. If I debug I see two different IDs. How can this happen? And I am not doing anything mentioned here.

I solved the problem by setting "This component is immediately activated" within eclipse. But as I red here, this is not the purpose of this checkbox. So maybe someone can explain how this happened in the first place and why it was fixed with this enabled.

Answer 1

When you use Declarative Services, the DS runtime may under certain circumstances re-instantiate your service, usually because some services it depends on have appeared/changed/got removed and the references are static. Check to see that all sites where service A is used are either static, or dynamic with both bind/unbind methods.