[homekit] handle NULL/UNDEF for temperature characteristics (#12172)

recent regression from handling QuantityType

Signed-off-by: Cody Cutrer <cody@cutrer.us>

diff --git a/bundles/org.openhab.io.homekit/src/main/java/org/openhab/io/homekit/internal/accessories/HomekitCharacteristicFactory.java b/bundles/org.openhab.io.homekit/src/main/java/org/openhab/io/homekit/internal/accessories/HomekitCharacteristicFactory.java
index a7a9de2aadb6b30a5a7d695e342bee4d95d74740..4367611823c0203000effcf49026c631a4c1ea18 100644 (file)
--- a/bundles/org.openhab.io.homekit/src/main/java/org/openhab/io/homekit/internal/accessories/HomekitCharacteristicFactory.java
+++ b/bundles/org.openhab.io.homekit/src/main/java/org/openhab/io/homekit/internal/accessories/HomekitCharacteristicFactory.java
@@ -262,7 +262,7 @@ public class HomekitCharacteristicFactory {
     }
 
     public static @Nullable Double stateAsTemperature(@Nullable State state) {
-        if (state == null) {
+        if (state == null || state instanceof UnDefType) {
             return null;
         }