Java 17 features (H-M) (#15520)

- add missing @override
- Java style array syntax
- remove redundant modifiers
- always move String constants to left side in comparisons
- simplify lambda expressions and return statements
- use replace instead of replaceAll w/o regex
- instanceof matching and multiline strings
- remove null check before instanceof

Signed-off-by: Holger Friedrich <mail@holger-friedrich.de>

bundles/org.openhab.binding.jablotron/src/main/java/org/openhab/binding/jablotron/internal/discovery/JablotronDiscoveryService.java

@@ -65,8 +65,8 @@ public class JablotronDiscoveryService extends AbstractDiscoveryService
 
     @Override
     public void setThingHandler(@Nullable ThingHandler thingHandler) {
-        if (thingHandler instanceof JablotronBridgeHandler) {
-            bridgeHandler = (JablotronBridgeHandler) thingHandler;
+        if (thingHandler instanceof JablotronBridgeHandler bridgeHandler) {
+            this.bridgeHandler = bridgeHandler;
         }
     }
 

bundles/org.openhab.binding.jablotron/src/main/java/org/openhab/binding/jablotron/internal/handler/JablotronBridgeHandler.java

@@ -15,8 +15,8 @@ package org.openhab.binding.jablotron.internal.handler;
 import static org.openhab.binding.jablotron.JablotronBindingConstants.*;
 
 import java.util.Collection;
-import java.util.Collections;
 import java.util.List;
+import java.util.Set;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.ScheduledFuture;
 import java.util.concurrent.TimeUnit;
@@ -85,7 +85,7 @@ public class JablotronBridgeHandler extends BaseBridgeHandler {
 
     @Override
     public Collection<Class<? extends ThingHandlerService>> getServices() {
-        return Collections.singleton(JablotronDiscoveryService.class);
+        return Set.of(JablotronDiscoveryService.class);
     }
 
     @Override