Things disable worked, Things enable does nothing

[openPhiL]

hi.
Just tried out the disable button on the paper-ui-configuration-things section, for a errornous binding (unify). Worked as expected.

2019-03-09 22:15:48.131 [hingStatusInfoChangedEvent] - 'unifi:site:3d20632a' changed from UNINITIALIZED (HANDLER_MISSING_ERROR) to UNINITIALIZED (DISABLED)

Now, clicking the enable button, I receive the little popup "Thing enabled", but "nothing" happens and nothing appears in the log. I expect "something" "anywhere" :D

I could try to change the log:set, but don't know for what org.openhab.thing?

[wborn]

The "handler missing error" suggests that you've uninstalled the binding after having added the thing.

I can also reproduce the issue this way:

1. Add thing from a binding
2. Uninstall this binding
3. Disable thing
4. Enable thing

I think it would make sense if the framework set the thing to enabled and updated the status to "UNINITIALIZED (HANDLER_MISSING_ERROR)" again.

Obviously you can get the thing to initialize properly by installing the binding again.

According to the code it does try to register and initialize the Thing again:

openhab-core/bundles/org.openhab.core.thing/src/main/java/org/eclipse/smarthome/core/thing/internal/ThingManagerImpl.java

Lines 1209 to 1235 in 48ce835

	public void setEnabled(ThingUID thingUID, boolean enabled) {
	Thing thing = getThing(thingUID);
	persistThingEnableStatus(thingUID, enabled);
	if (thing == null) {
	logger.debug("Thing with the UID {} is unknown, cannot set its enabled status.", thingUID);
	return;
	}
	if (enabled) {
	// Enable a thing
	if (thing.getStatus().equals(ThingStatus.ONLINE)) {
	logger.debug("Thing {} is already in the required state.", thingUID);
	return;
	}
	logger.debug("Thing {} will be enabled.", thingUID);
	if (isHandlerRegistered(thing)) {
	// A handler is already registered for that thing. Try to initialize it.
	initializeHandler(thing);
	} else {
	// No handler registered. Try to register handler and initialize the thing.
	registerAndInitializeHandler(thing, findThingHandlerFactory(thing.getThingTypeUID()));
	}
	} else {

[Rossko57]

Comment only - the "UNINITIALIZED (HANDLER_MISSING_ERROR)" status can be produced where there is a Thing hierarchy e.g a Bridge Thing is disabled and related Thing attempts to go online.(without removing binding).