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.gpstracker/src/main/java/org/openhab/binding/gpstracker/internal/message/NotificationHandler.java

@@ -48,11 +48,11 @@ public class NotificationHandler {
     public void handleNotification(LocationMessage msg) {
         synchronized (this) {
             String trackerId = msg.getTrackerId();
-            if (msg instanceof TransitionMessage) {
+            if (msg instanceof TransitionMessage message) {
                 List<TransitionMessage> transitionMessages = transitionNotifications.computeIfAbsent(trackerId,
                         k -> new ArrayList<>());
                 if (transitionMessages != null) {
-                    transitionMessages.add((TransitionMessage) msg);
+                    transitionMessages.add(message);
                 }
             } else {
                 locationNotifications.put(trackerId, msg);

bundles/org.openhab.binding.gpstracker/src/main/java/org/openhab/binding/gpstracker/internal/provider/AbstractCallbackServlet.java

@@ -120,9 +120,8 @@ public abstract class AbstractCallbackServlet extends HttpServlet {
         if (!trackerId.isEmpty()) {
             TrackerHandler recorder = getHandlerById(trackerId);
             if (recorder != null) {
-                if (message instanceof TransitionMessage) {
-                    TransitionMessage tm = (TransitionMessage) message;
-                    recorder.doTransition(tm);
+                if (message instanceof TransitionMessage transitionMessage) {
+                    recorder.doTransition(transitionMessage);
                 } else {
                     recorder.updateLocation(message);
                 }