Java 17 features (A-G) (#15516)

- 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

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

bundles/org.openhab.binding.electroluxair/src/main/java/org/openhab/binding/electroluxair/internal/discovery/ElectroluxAirDiscoveryService.java

@@ -45,8 +45,8 @@ public class ElectroluxAirDiscoveryService extends AbstractDiscoveryService
 
     @Override
     public void setThingHandler(@Nullable ThingHandler handler) {
-        if (handler instanceof ElectroluxAirBridgeHandler) {
-            this.handler = (ElectroluxAirBridgeHandler) handler;
+        if (handler instanceof ElectroluxAirBridgeHandler bridgeHandler) {
+            this.handler = bridgeHandler;
         }
     }
 

bundles/org.openhab.binding.electroluxair/src/main/java/org/openhab/binding/electroluxair/internal/handler/ElectroluxAirBridgeHandler.java

@@ -15,7 +15,6 @@ package org.openhab.binding.electroluxair.internal.handler;
 import static org.openhab.binding.electroluxair.internal.ElectroluxAirBindingConstants.*;
 
 import java.util.Collection;
-import java.util.Collections;
 import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
@@ -50,7 +49,7 @@ import com.google.gson.Gson;
 @NonNullByDefault
 public class ElectroluxAirBridgeHandler extends BaseBridgeHandler {
 
-    public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Collections.singleton(THING_TYPE_BRIDGE);
+    public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = Set.of(THING_TYPE_BRIDGE);
 
     private int refreshTimeInSeconds = 300;
 
@@ -100,7 +99,7 @@ public class ElectroluxAirBridgeHandler extends BaseBridgeHandler {
 
     @Override
     public Collection<Class<? extends ThingHandlerService>> getServices() {
-        return Collections.singleton(ElectroluxAirDiscoveryService.class);
+        return Set.of(ElectroluxAirDiscoveryService.class);
     }
 
     @Override