Java 17 features (T-Z) (#15576)

- 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.wundergroundupdatereceiver/src/main/java/org/openhab/binding/wundergroundupdatereceiver/internal/WundergroundUpdateReceiverServlet.java

@@ -77,6 +77,7 @@ public class WundergroundUpdateReceiverServlet extends HttpServlet
         active = discoveryService.isBackgroundDiscoveryEnabled();
     }
 
+    @Override
     public boolean isActive() {
         synchronized (LOCK) {
             return this.active;
@@ -127,6 +128,7 @@ public class WundergroundUpdateReceiverServlet extends HttpServlet
     }
 
     @Deactivate
+    @Override
     public void disable() {
         errorDetail = "";
         active = false;