* [tradfri] fix null pointer exception when sending command to thing that is offline
* [tradfri] changed coapClient from @NinNullByDefault({}) to @Nullable
Signed-off-by: Rob Nielsen <rob.nielsen@yahoo.com>
* [tradfri] fix null pointer exception when sending command to thing that is offline
* [tradfri] changed coapClient from @NinNullByDefault({}) to @Nullable
Signed-off-by: Rob Nielsen <rob.nielsen@yahoo.com>