Looks like the jar file is only available for 3.0.2 and for 3.1.0 ( see JFrog ).
So either you need to upgrade to 3.0.2 or what also should work is to install the kar file as mentioned in openHAB 3.0.2 Patch Release and the Sunset of Bintray
Looks like the jar file is only available for 3.0.2 and for 3.1.0 ( see JFrog ).
So either you need to upgrade to 3.0.2 or what also should work is to install the kar file as mentioned in openHAB 3.0.2 Patch Release and the Sunset of Bintray