more improvements of comments

Co-Authored-By: Stypox <stypox@pm.me>

extractor/src/main/java/org/schabi/newpipe/extractor/StreamingService.java

@@ -263,7 +263,7 @@ public abstract class StreamingService {
 
     public CommentsExtractor getCommentsExtractor(String url) throws ExtractionException {
         ListLinkHandlerFactory llhf = getCommentsLHFactory();
-        if (null == llhf) {
+        if (llhf == null) {
             return null;
         }
         return getCommentsExtractor(llhf.fromUrl(url));

extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/PeertubeInstance.java

@@ -43,7 +43,7 @@ public class PeertubeInstance {
             throw new Exception("unable to configure instance " + url, e);
         }
 
-        if (null == response || StringUtil.isBlank(response.responseBody())) {
+        if (response == null || StringUtil.isBlank(response.responseBody())) {
             throw new Exception("unable to configure instance " + url);
         }
 

extractor/src/main/java/org/schabi/newpipe/extractor/services/peertube/extractors/PeertubeChannelExtractor.java

@@ -171,7 +171,7 @@ public class PeertubeChannelExtractor extends ChannelExtractor {
         } catch (JsonParserException e) {
             throw new ExtractionException("Unable to extract peertube channel data", e);
         }
-        if (null == json) throw new ExtractionException("Unable to extract PeerTube channel data");
+        if (json == null) throw new ExtractionException("Unable to extract PeerTube channel data");
     }
 
     @Override

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeCommentsExtractor.java

@@ -133,7 +133,7 @@ public class YoutubeCommentsExtractor extends CommentsExtractor {
     }
 
     private void fetchTitle(JsonArray contents) {
-        if (null == title) {
+        if (title == null) {
             try {
                 title = getYoutubeText(JsonUtils.getObject(contents.getObject(0), "commentThreadRenderer.commentTargetTitle"));
             } catch (Exception e) {

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubePlaylistExtractor.java

@@ -68,7 +68,7 @@ public class YoutubePlaylistExtractor extends PlaylistExtractor {
     @Override
     public String getBannerUrl() {
         return "";      // Banner can't be handled by frontend right now.
-        // Whoever is willing to implement this should also implement this in the front end.
+        // Whoever is willing to implement this should also implement it in the frontend.
     }
 
     @Override

extractor/src/main/java/org/schabi/newpipe/extractor/stream/StreamExtractor.java

@@ -335,10 +335,10 @@ public abstract class StreamExtractor extends Extractor {
         try {
             timeStamp = Parser.matchGroup1(regexPattern, getOriginalUrl());
         } catch (Parser.RegexException e) {
-            // catch this instantly since an url does not necessarily have to have a time stamp
+            // catch this instantly since a url does not necessarily have a timestamp
 
             // -2 because the testing system will consequently know that the regex failed
-            // not good i know
+            // not good, I know
             return -2;
         }