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.weathercompany/src/main/java/org/openhab/binding/weathercompany/internal/handler/WeatherCompanyAbstractHandler.java

@@ -273,8 +273,7 @@ public abstract class WeatherCompanyAbstractHandler extends BaseThingHandler {
     protected DateTimeType getLocalDateTimeType(long epochSeconds) {
         Instant instant = Instant.ofEpochSecond(epochSeconds);
         ZonedDateTime localDateTime = instant.atZone(getZoneId());
-        DateTimeType dateTimeType = new DateTimeType(localDateTime);
-        return dateTimeType;
+        return new DateTimeType(localDateTime);
     }
 
     /*