[rfxcom] Depends on Full JRE

[svilenvul]

Looking at the report generated by openhab/static-code-analysis#283, I see that several packages in rfxcom binding depend on Full JRE:

• org.openhab.binding.rfxcom.handler depends on javax.xml.bind (Full JRE)
• org.openhab.binding.rfxcom.internal.connector depends on javax.xml.bind (Full JRE)
• org.openhab.binding.rfxcom.internal.messages depends on javax.xml.bind (Full JRE)

This is a violation of C.1 in the openHAB coding guidelines https://docs.openhab.org/developers/development/guidelines.html#c-language-levels-and-libraries.

It will be good if we can refactor it, so the bundle remains restricted to Compact Profile 2, or if it is not possible document that the binding is an exception.

[martinvw]

Checking the code here looks hopeful it seems to be caused by DatatypeConverter I believe printf or String.format can do something similar

[martinvw]

@kaikreuzer the code for the functionality (convert byte arrays to a hexadecimal string) we use is non trivial so ideal I would add it somewhere in ESH, what do you think that a proper place would be in esh or can we add commons codec as a dependency for ESH...

[kaikreuzer]

convert byte arrays to a hexadecimal string

Sounds just like this, doesn't it?

[martinvw]

@kaikreuzer I needed a small extension and some time to dust of my smarthome checkout :-)

eclipse-archived/smarthome#5331