Update californium dependencies to version 1.0.7

[cweitkamp]

• Update californium dependencies to version 1.0.7 (see https://github.com/eclipse/californium/releases/tag/1.0.7)

Closes openhab/openhab2-addons#4733

Signed-off-by: Christoph Weitkamp [email protected]

[maggu2810]

The bump itself is okay from my side.

But I have a more general question:
Should stuff that is not be used by the framework itself be part of the feature that is provided by the framework -- so its target platform?
Wouldn't it make sense that a framework does not know about stuff it does not use?
Bundles and so features can depend / inject the stuff that is needed without any framework modification.

[kaikreuzer]

Wouldn't it make sense that a framework does not know about stuff it does not use?

Actually, the Californium lib is our API for CoAP, i.e. it is the content of the "openhab-core-io-transport-coap" feature, which is defined by the framework, similar to e.g. "openhab-core-io-transport-mdns". The only difference is that we do not (yet?) provide any additional code as a bundle with it, so the feature only contains the external lib. Nonetheless, it is what the framework provides and thus I think it is ok to have it here.

What makes it a bit awkward right now is that only the Tradfri binding makes use of it - but hopefully, we will see other add-ons in future and then all should be fine.