TeamNewPipe · Isira-Seneviratne · Nov 6, 2020 · Nov 6, 2020
diff --git a/app/build.gradle b/app/build.gradle
@@ -5,8 +5,8 @@ apply plugin: 'kotlin-kapt'
 apply plugin: 'checkstyle'
 
 android {
-    compileSdkVersion 29
-    buildToolsVersion '29.0.3'
+    compileSdkVersion 30
+    buildToolsVersion '30.0.2'
 
     defaultConfig {
         applicationId "org.schabi.newpipe"

diff --git a/app/src/main/java/org/schabi/newpipe/App.java b/app/src/main/java/org/schabi/newpipe/App.java
@@ -35,7 +35,6 @@
 import java.io.InterruptedIOException;
 import java.net.SocketException;
 import java.util.Arrays;
-import java.util.Collections;
 import java.util.List;
 
 import io.reactivex.rxjava3.disposables.Disposable;
@@ -154,7 +153,7 @@ public void accept(@NonNull final Throwable throwable) {
                 if (actualThrowable instanceof CompositeException) {
                     errors = ((CompositeException) actualThrowable).getExceptions();
                 } else {
-                    errors = Collections.singletonList(actualThrowable);
+                    errors = List.of(actualThrowable);
                 }
 
                 for (final Throwable error : errors) {

diff --git a/app/src/main/java/org/schabi/newpipe/download/DownloadDialog.java b/app/src/main/java/org/schabi/newpipe/download/DownloadDialog.java
@@ -61,7 +61,6 @@
 import java.io.File;
 import java.io.IOException;
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 import java.util.Locale;
 
@@ -594,7 +593,7 @@ private void showFailedDialog(@StringRes final int msg) {
     private void showErrorActivity(final Exception e) {
         ErrorActivity.reportError(
                 context,
-                Collections.singletonList(e),
+                List.of(e),
                 null,
                 null,
                 ErrorInfo

diff --git a/app/src/main/java/org/schabi/newpipe/fragments/BaseStateFragment.java b/app/src/main/java/org/schabi/newpipe/fragments/BaseStateFragment.java
@@ -29,7 +29,6 @@
 import org.schabi.newpipe.report.UserAction;
 import org.schabi.newpipe.util.InfoCache;
 
-import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -253,8 +252,7 @@ public void onReCaptchaException(final ReCaptchaException exception) {
     public void onUnrecoverableError(final Throwable exception, final UserAction userAction,
                                      final String serviceName, final String request,
                                      @StringRes final int errorId) {
-        onUnrecoverableError(Collections.singletonList(exception), userAction, serviceName,
-                request, errorId);
+        onUnrecoverableError(List.of(exception), userAction, serviceName, request, errorId);
     }
 
     public void onUnrecoverableError(final List<Throwable> exception, final UserAction userAction,
@@ -272,8 +270,7 @@ public void onUnrecoverableError(final List<Throwable> exception, final UserActi
     public void showSnackBarError(final Throwable exception, final UserAction userAction,
                                   final String serviceName, final String request,
                                   @StringRes final int errorId) {
-        showSnackBarError(Collections.singletonList(exception), userAction, serviceName, request,
-                errorId);
+        showSnackBarError(List.of(exception), userAction, serviceName, request, errorId);
     }
 
     /**

diff --git a/app/src/main/java/org/schabi/newpipe/local/dialog/PlaylistAppendDialog.java b/app/src/main/java/org/schabi/newpipe/local/dialog/PlaylistAppendDialog.java
@@ -25,7 +25,6 @@
 import org.schabi.newpipe.util.OnClickGesture;
 
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
@@ -59,7 +58,7 @@ public static Disposable onPlaylistFound(
 
     public static PlaylistAppendDialog fromStreamInfo(final StreamInfo info) {
         final PlaylistAppendDialog dialog = new PlaylistAppendDialog();
-        dialog.setInfo(Collections.singletonList(new StreamEntity(info)));
+        dialog.setInfo(List.of(new StreamEntity(info)));
         return dialog;
     }
 

diff --git a/app/src/main/java/org/schabi/newpipe/local/history/StatisticsPlaylistFragment.java b/app/src/main/java/org/schabi/newpipe/local/history/StatisticsPlaylistFragment.java
@@ -453,7 +453,7 @@ private PlayQueue getPlayQueue() {
 
     private PlayQueue getPlayQueue(final int index) {
         if (itemListAdapter == null) {
-            return new SinglePlayQueue(Collections.emptyList(), 0);
+            return new SinglePlayQueue(List.of(), 0);
         }
 
         final List<LocalItem> infoItems = itemListAdapter.getItemsList();

diff --git a/app/src/main/java/org/schabi/newpipe/local/playlist/LocalPlaylistFragment.java b/app/src/main/java/org/schabi/newpipe/local/playlist/LocalPlaylistFragment.java
@@ -803,7 +803,7 @@ private PlayQueue getPlayQueue() {
 
     private PlayQueue getPlayQueue(final int index) {
         if (itemListAdapter == null) {
-            return new SinglePlayQueue(Collections.emptyList(), 0);
+            return new SinglePlayQueue(List.of(), 0);
         }
 
         final List<LocalItem> infoItems = itemListAdapter.getItemsList();

diff --git a/app/src/main/java/org/schabi/newpipe/local/subscription/SubscriptionsImportFragment.java b/app/src/main/java/org/schabi/newpipe/local/subscription/SubscriptionsImportFragment.java
@@ -33,7 +33,6 @@
 import org.schabi.newpipe.util.FilePickerActivityHelper;
 import org.schabi.newpipe.util.ServiceHelper;
 
-import java.util.Collections;
 import java.util.List;
 
 import icepick.State;
@@ -84,7 +83,7 @@ public void onCreate(final Bundle savedInstanceState) {
 
         setupServiceVariables();
         if (supportedSources.isEmpty() && currentServiceId != Constants.NO_SERVICE_ID) {
-            ErrorActivity.reportError(activity, Collections.emptyList(), null, null,
+            ErrorActivity.reportError(activity, List.of(), null, null,
                     ErrorInfo.make(UserAction.SOMETHING_ELSE,
                             NewPipe.getNameOfService(currentServiceId),
                             "Service don't support importing", R.string.general_error));
@@ -211,7 +210,7 @@ private void setupServiceVariables() {
             }
         }
 
-        supportedSources = Collections.emptyList();
+        supportedSources = List.of();
         relatedUrl = null;
         instructionsString = 0;
     }

diff --git a/...src/main/java/org/schabi/newpipe/local/subscription/services/BaseImportExportService.java b/...src/main/java/org/schabi/newpipe/local/subscription/services/BaseImportExportService.java
@@ -43,7 +43,7 @@
 import org.schabi.newpipe.report.UserAction;
 
 import java.io.FileNotFoundException;
-import java.util.Collections;
+import java.util.List;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicInteger;
 
@@ -157,8 +157,8 @@ protected void stopAndReportError(@Nullable final Throwable error, final String
 
         final ErrorInfo errorInfo = ErrorInfo
                 .make(UserAction.SUBSCRIPTION, "unknown", request, R.string.general_error);
-        ErrorActivity.reportError(this, error != null ? Collections.singletonList(error)
-                        : Collections.emptyList(), null, null, errorInfo);
+        ErrorActivity.reportError(this, error != null ? List.of(error) : List.of(),
+                null, null, errorInfo);
     }
 
     protected void postErrorResult(final String title, final String text) {

diff --git a/app/src/main/java/org/schabi/newpipe/player/PlayQueueActivity.java b/app/src/main/java/org/schabi/newpipe/player/PlayQueueActivity.java
@@ -41,7 +41,6 @@
 import org.schabi.newpipe.util.PermissionHelper;
 import org.schabi.newpipe.util.ThemeHelper;
 
-import java.util.Collections;
 import java.util.List;
 
 import static org.schabi.newpipe.player.helper.PlayerHelper.formatSpeed;
@@ -305,7 +304,7 @@ private void buildItemPopupMenu(final PlayQueueItem item, final View view) {
         final MenuItem append = popupMenu.getMenu().add(RECYCLER_ITEM_POPUP_MENU_GROUP_ID, 2,
                 Menu.NONE, R.string.append_playlist);
         append.setOnMenuItemClickListener(menuItem -> {
-            openPlaylistAppendDialog(Collections.singletonList(item));
+            openPlaylistAppendDialog(List.of(item));
             return true;
         });
 

diff --git a/app/src/main/java/org/schabi/newpipe/player/mediasession/PlayQueueNavigator.java b/app/src/main/java/org/schabi/newpipe/player/mediasession/PlayQueueNavigator.java
@@ -13,7 +13,6 @@
 import com.google.android.exoplayer2.util.Util;
 
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 
 import static android.support.v4.media.session.PlaybackStateCompat.ACTION_SKIP_TO_NEXT;
@@ -81,7 +80,7 @@ public void onSkipToNext(final Player player, final ControlDispatcher controlDis
 
     private void publishFloatingQueueWindow() {
         if (callback.getQueueSize() == 0) {
-            mediaSession.setQueue(Collections.emptyList());
+            mediaSession.setQueue(List.of());
             activeQueueItemId = MediaSessionCompat.QueueItem.UNKNOWN_ID;
             return;
         }

diff --git a/app/src/main/java/org/schabi/newpipe/player/playqueue/AbstractInfoPlayQueue.java b/app/src/main/java/org/schabi/newpipe/player/playqueue/AbstractInfoPlayQueue.java
@@ -11,7 +11,6 @@
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 
 import io.reactivex.rxjava3.core.SingleObserver;
@@ -28,7 +27,7 @@ abstract class AbstractInfoPlayQueue<T extends ListInfo, U extends InfoItem> ext
     private transient Disposable fetchReactor;
 
     AbstractInfoPlayQueue(final U item) {
-        this(item.getServiceId(), item.getUrl(), null, Collections.emptyList(), 0);
+        this(item.getServiceId(), item.getUrl(), null, List.of(), 0);
     }
 
     AbstractInfoPlayQueue(final int serviceId, final String url, final Page nextPage,

diff --git a/app/src/main/java/org/schabi/newpipe/player/playqueue/SinglePlayQueue.java b/app/src/main/java/org/schabi/newpipe/player/playqueue/SinglePlayQueue.java
@@ -4,20 +4,19 @@
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 
 public final class SinglePlayQueue extends PlayQueue {
     public SinglePlayQueue(final StreamInfoItem item) {
-        super(0, Collections.singletonList(new PlayQueueItem(item)));
+        super(0, List.of(new PlayQueueItem(item)));
     }
 
     public SinglePlayQueue(final StreamInfo info) {
-        super(0, Collections.singletonList(new PlayQueueItem(info)));
+        super(0, List.of(new PlayQueueItem(info)));
     }
 
     public SinglePlayQueue(final StreamInfo info, final long startPosition) {
-        super(0, Collections.singletonList(new PlayQueueItem(info)));
+        super(0, List.of(new PlayQueueItem(info)));
         getItem().setRecoveryPosition(startPosition);
     }
 

diff --git a/app/src/main/java/org/schabi/newpipe/player/resolver/MediaSourceTag.java b/app/src/main/java/org/schabi/newpipe/player/resolver/MediaSourceTag.java
@@ -7,7 +7,6 @@
 import org.schabi.newpipe.extractor.stream.VideoStream;
 
 import java.io.Serializable;
-import java.util.Collections;
 import java.util.List;
 
 public class MediaSourceTag implements Serializable {
@@ -27,7 +26,7 @@ public MediaSourceTag(@NonNull final StreamInfo metadata,
     }
 
     public MediaSourceTag(@NonNull final StreamInfo metadata) {
-        this(metadata, Collections.emptyList(), /*indexNotAvailable=*/-1);
+        this(metadata, List.of(), /*indexNotAvailable=*/-1);
     }
 
     @NonNull

diff --git a/app/src/main/java/org/schabi/newpipe/report/ErrorActivity.java b/app/src/main/java/org/schabi/newpipe/report/ErrorActivity.java
@@ -41,7 +41,6 @@
 import java.util.Date;
 import java.util.List;
 import java.util.TimeZone;
-import java.util.Vector;
 
 import static org.schabi.newpipe.util.Localization.assureCorrectAppLanguage;
 
@@ -118,25 +117,14 @@ private static void startErrorActivity(final Class returnActivity, final Context
     public static void reportError(final Context context, final Throwable e,
                                    final Class returnActivity, final View rootView,
                                    final ErrorInfo errorInfo) {
-        List<Throwable> el = null;
-        if (e != null) {
-            el = new Vector<>();
-            el.add(e);
-        }
-        reportError(context, el, returnActivity, rootView, errorInfo);
+        reportError(context, List.of(e), returnActivity, rootView, errorInfo);
     }
 
     // async call
     public static void reportError(final Handler handler, final Context context,
                                    final Throwable e, final Class returnActivity,
                                    final View rootView, final ErrorInfo errorInfo) {
-
-        List<Throwable> el = null;
-        if (e != null) {
-            el = new Vector<>();
-            el.add(e);
-        }
-        reportError(handler, context, el, returnActivity, rootView, errorInfo);
+        reportError(handler, context, List.of(e), returnActivity, rootView, errorInfo);
     }
 
     // async call

diff --git a/app/src/main/java/org/schabi/newpipe/util/ExtractorHelper.java b/app/src/main/java/org/schabi/newpipe/util/ExtractorHelper.java
@@ -62,7 +62,6 @@
 import org.schabi.newpipe.report.ErrorInfo;
 import org.schabi.newpipe.report.UserAction;
 
-import java.util.Collections;
 import java.util.List;
 
 import io.reactivex.rxjava3.core.Maybe;
@@ -115,9 +114,7 @@ public static Single<List<String>> suggestionsFor(final int serviceId, final Str
         return Single.fromCallable(() -> {
             final SuggestionExtractor extractor = NewPipe.getService(serviceId)
                     .getSuggestionExtractor();
-            return extractor != null
-                    ? extractor.suggestionList(query)
-                    : Collections.emptyList();
+            return extractor != null ? extractor.suggestionList(query) : List.of();
         });
     }
 

diff --git a/app/src/main/java/org/schabi/newpipe/util/PeertubeHelper.java b/app/src/main/java/org/schabi/newpipe/util/PeertubeHelper.java
@@ -17,7 +17,6 @@
 import org.schabi.newpipe.extractor.services.peertube.PeertubeInstance;
 
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 
 public final class PeertubeHelper {
@@ -29,7 +28,7 @@ public static List<PeertubeInstance> getInstanceList(final Context context) {
         final String savedInstanceListKey = context.getString(R.string.peertube_instance_list_key);
         final String savedJson = sharedPreferences.getString(savedInstanceListKey, null);
         if (null == savedJson) {
-            return Collections.singletonList(getCurrentInstance());
+            return List.of(getCurrentInstance());
         }
 
         try {
@@ -45,9 +44,8 @@ public static List<PeertubeInstance> getInstanceList(final Context context) {
             }
             return result;
         } catch (final JsonParserException e) {
-            return Collections.singletonList(getCurrentInstance());
+            return List.of(getCurrentInstance());
         }
-
     }
 
     public static PeertubeInstance selectInstance(final PeertubeInstance instance,

diff --git a/app/src/main/java/org/schabi/newpipe/util/RelatedStreamInfo.java b/app/src/main/java/org/schabi/newpipe/util/RelatedStreamInfo.java
@@ -6,7 +6,6 @@
 import org.schabi.newpipe.extractor.stream.StreamInfo;
 
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.List;
 
 public class RelatedStreamInfo extends ListInfo<InfoItem> {
@@ -17,7 +16,7 @@ public RelatedStreamInfo(final int serviceId, final ListLinkHandler listUrlIdHan
 
     public static RelatedStreamInfo getInfo(final StreamInfo info) {
         final ListLinkHandler handler = new ListLinkHandler(
-                info.getOriginalUrl(), info.getUrl(), info.getId(), Collections.emptyList(), null);
+                info.getOriginalUrl(), info.getUrl(), info.getId(), List.of(), null);
         final RelatedStreamInfo relatedStreamInfo = new RelatedStreamInfo(
                 info.getServiceId(), handler, info.getName());
         final List<InfoItem> streams = new ArrayList<>(info.getRelatedStreams());

diff --git a/app/src/main/java/org/schabi/newpipe/util/StreamDialogEntry.java b/app/src/main/java/org/schabi/newpipe/util/StreamDialogEntry.java
@@ -13,7 +13,6 @@
 import org.schabi.newpipe.player.helper.PlayerHolder;
 import org.schabi.newpipe.player.playqueue.SinglePlayQueue;
 
-import java.util.Collections;
 import java.util.List;
 
 import static org.schabi.newpipe.player.MainPlayer.PlayerType.AUDIO;
@@ -60,8 +59,7 @@ public enum StreamDialogEntry {
 
     append_playlist(R.string.append_playlist, (fragment, item) -> {
         if (fragment.getFragmentManager() != null) {
-            final PlaylistAppendDialog d = PlaylistAppendDialog
-                    .fromStreamInfoItems(Collections.singletonList(item));
+            final PlaylistAppendDialog d = PlaylistAppendDialog.fromStreamInfoItems(List.of(item));
 
             PlaylistAppendDialog.onPlaylistFound(fragment.getContext(),
                 () -> d.show(fragment.getFragmentManager(), "StreamDialogEntry@append_playlist"),

diff --git a/app/src/main/java/org/schabi/newpipe/util/StreamItemAdapter.java b/app/src/main/java/org/schabi/newpipe/util/StreamItemAdapter.java
@@ -19,7 +19,6 @@
 
 import java.io.Serializable;
 import java.util.Arrays;
-import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.Callable;
 
@@ -178,15 +177,13 @@ private View getCustomView(final int position, final View view, final ViewGroup
      */
     public static class StreamSizeWrapper<T extends Stream> implements Serializable {
         private static final StreamSizeWrapper<Stream> EMPTY = new StreamSizeWrapper<>(
-                Collections.emptyList(), null);
+                List.of(), null);
         private final List<T> streamsList;
         private final long[] streamSizes;
         private final String unknownSize;
 
         public StreamSizeWrapper(final List<T> sL, final Context context) {
-            this.streamsList = sL != null
-                    ? sL
-                    : Collections.emptyList();
+            this.streamsList = sL != null ? sL : List.of();
             this.streamSizes = new long[streamsList.size()];
             this.unknownSize = context == null
                     ? "--.-" : context.getString(R.string.unknown_content);