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.ftpupload/src/main/java/org/openhab/binding/ftpupload/internal/FtpUploadHandlerFactory.java

@@ -14,7 +14,6 @@ package org.openhab.binding.ftpupload.internal;
 
 import static org.openhab.binding.ftpupload.internal.FtpUploadBindingConstants.THING_TYPE_IMAGERECEIVER;
 
-import java.util.Collections;
 import java.util.Dictionary;
 import java.util.Set;
 
@@ -46,7 +45,7 @@ import org.slf4j.LoggerFactory;
 public class FtpUploadHandlerFactory extends BaseThingHandlerFactory {
     private final Logger logger = LoggerFactory.getLogger(FtpUploadHandlerFactory.class);
 
-    private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Collections.singleton(THING_TYPE_IMAGERECEIVER);
+    private static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Set.of(THING_TYPE_IMAGERECEIVER);
 
     private final int DEFAULT_PORT = 2121;
     private final int DEFAULT_IDLE_TIMEOUT = 60;