Java 17 features (N-S) (#15565)

- 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.pushbullet/src/main/java/org/openhab/binding/pushbullet/internal/PushbulletBindingConstants.java

@@ -12,7 +12,6 @@
  */
 package org.openhab.binding.pushbullet.internal;
 
-import java.util.Collections;
 import java.util.Set;
 
 import org.eclipse.jdt.annotation.NonNullByDefault;
@@ -32,7 +31,7 @@ public class PushbulletBindingConstants {
     // List of all Thing Type UIDs
     public static final ThingTypeUID THING_TYPE_BOT = new ThingTypeUID(BINDING_ID, "bot");
 
-    public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Collections.singleton(THING_TYPE_BOT);
+    public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES_UIDS = Set.of(THING_TYPE_BOT);
 
     // List of all Channel ids
     public static final String RECIPIENT = "recipient";

bundles/org.openhab.binding.pushbullet/src/main/java/org/openhab/binding/pushbullet/internal/handler/PushbulletHandler.java

@@ -19,8 +19,8 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.nio.charset.StandardCharsets;
 import java.util.Collection;
-import java.util.Collections;
 import java.util.Properties;
+import java.util.Set;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -97,7 +97,7 @@ public class PushbulletHandler extends BaseThingHandler {
 
     @Override
     public Collection<Class<? extends ThingHandlerService>> getServices() {
-        return Collections.singleton(PushbulletActions.class);
+        return Set.of(PushbulletActions.class);
     }
 
     public boolean sendPush(@Nullable String recipient, @Nullable String message, String type) {
@@ -129,8 +129,6 @@ public class PushbulletHandler extends BaseThingHandler {
 
             logger.debug("Unpacked Response: {}", response);
 
-            stream.close();
-
             if ((null != response) && (null == response.getPushError())) {
                 result = true;
             }