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.luxtronikheatpump/src/main/java/org/openhab/binding/luxtronikheatpump/internal/LuxtronikHeatpumpBindingConstants.java

@@ -12,7 +12,6 @@
  */
 package org.openhab.binding.luxtronikheatpump.internal;
 
-import java.util.Collections;
 import java.util.Set;
 
 import org.eclipse.jdt.annotation.NonNullByDefault;
@@ -31,5 +30,5 @@ public class LuxtronikHeatpumpBindingConstants {
 
     public static final ThingTypeUID THING_TYPE_HEATPUMP = new ThingTypeUID(BINDING_ID, "heatpump");
 
-    public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Collections.singleton(THING_TYPE_HEATPUMP);
+    public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Set.of(THING_TYPE_HEATPUMP);
 }

bundles/org.openhab.binding.luxtronikheatpump/src/main/java/org/openhab/binding/luxtronikheatpump/internal/LuxtronikHeatpumpHandler.java

@@ -112,9 +112,7 @@ public class LuxtronikHeatpumpHandler extends BaseThingHandler {
             return;
         }
 
-        if (command instanceof QuantityType) {
-            QuantityType<?> value = (QuantityType<?>) command;
-
+        if (command instanceof QuantityType value) {
             Unit<?> unit = channel.getUnit();
             if (unit != null) {
                 value = value.toUnit(unit);
@@ -123,8 +121,8 @@ public class LuxtronikHeatpumpHandler extends BaseThingHandler {
             command = new DecimalType(value.floatValue());
         }
 
-        if (command instanceof OnOffType) {
-            command = ((OnOffType) command) == OnOffType.ON ? new DecimalType(1) : DecimalType.ZERO;
+        if (command instanceof OnOffType onOffCommand) {
+            command = onOffCommand == OnOffType.ON ? new DecimalType(1) : DecimalType.ZERO;
         }
 
         if (!(command instanceof DecimalType)) {

bundles/org.openhab.binding.luxtronikheatpump/src/main/java/org/openhab/binding/luxtronikheatpump/internal/enums/HeatpumpType.java

@@ -109,7 +109,7 @@ public enum HeatpumpType {
         this.name = name;
     }
 
-    public static final HeatpumpType fromCode(Integer code) {
+    public static HeatpumpType fromCode(Integer code) {
         for (HeatpumpType error : HeatpumpType.values()) {
             if (error.code.equals(code)) {
                 return error;