diff --git a/app/src/main/java/org/schabi/newpipe/App.java b/app/src/main/java/org/schabi/newpipe/App.java
index f436a26b8..dfce8f100 100644
--- a/app/src/main/java/org/schabi/newpipe/App.java
+++ b/app/src/main/java/org/schabi/newpipe/App.java
@@ -106,7 +106,7 @@ public class App extends Application {
         // https://github.com/ReactiveX/RxJava/wiki/What's-different-in-2.0#error-handling
         RxJavaPlugins.setErrorHandler(new Consumer<Throwable>() {
             @Override
-            public void accept(@NonNull Throwable throwable) throws Exception {
+            public void accept(@NonNull Throwable throwable) {
                 Log.e(TAG, "RxJavaPlugins.ErrorHandler called with -> : " +
                         "throwable = [" + throwable.getClass().getName() + "]");
 
diff --git a/app/src/main/java/org/schabi/newpipe/local/dialog/PlaylistDialog.java b/app/src/main/java/org/schabi/newpipe/local/dialog/PlaylistDialog.java
index 4b8e391c7..96d628683 100644
--- a/app/src/main/java/org/schabi/newpipe/local/dialog/PlaylistDialog.java
+++ b/app/src/main/java/org/schabi/newpipe/local/dialog/PlaylistDialog.java
@@ -58,7 +58,7 @@ public abstract class PlaylistDialog extends DialogFragment implements StateSave
 
     @Override
     @SuppressWarnings("unchecked")
-    public void readFrom(@NonNull Queue<Object> savedObjects) throws Exception {
+    public void readFrom(@NonNull Queue<Object> savedObjects) {
         streamEntities = (List<StreamEntity>) savedObjects.poll();
     }
 
diff --git a/app/src/main/java/org/schabi/newpipe/local/subscription/SubscriptionService.java b/app/src/main/java/org/schabi/newpipe/local/subscription/SubscriptionService.java
index fc4230711..b4545a2dd 100644
--- a/app/src/main/java/org/schabi/newpipe/local/subscription/SubscriptionService.java
+++ b/app/src/main/java/org/schabi/newpipe/local/subscription/SubscriptionService.java
@@ -116,7 +116,7 @@ public class SubscriptionService {
     public Completable updateChannelInfo(final ChannelInfo info) {
         final Function<List<SubscriptionEntity>, CompletableSource> update = new Function<List<SubscriptionEntity>, CompletableSource>() {
             @Override
-            public CompletableSource apply(@NonNull List<SubscriptionEntity> subscriptionEntities) throws Exception {
+            public CompletableSource apply(@NonNull List<SubscriptionEntity> subscriptionEntities) {
                 if (DEBUG) Log.d(TAG, "updateChannelInfo() called with: subscriptionEntities = [" + subscriptionEntities + "]");
                 if (subscriptionEntities.size() == 1) {
                     SubscriptionEntity subscription = subscriptionEntities.get(0);
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
index 429c26fd9..3d1fd171f 100644
--- a/app/src/main/java/org/schabi/newpipe/player/mediasession/PlayQueueNavigator.java
+++ b/app/src/main/java/org/schabi/newpipe/player/mediasession/PlayQueueNavigator.java
@@ -79,7 +79,7 @@ public class PlayQueueNavigator implements MediaSessionConnector.QueueNavigator
 
     private void publishFloatingQueueWindow() {
         if (callback.getQueueSize() == 0) {
-            mediaSession.setQueue(Collections.<MediaSessionCompat.QueueItem>emptyList());
+            mediaSession.setQueue(Collections.emptyList());
             activeQueueItemId = MediaSessionCompat.QueueItem.UNKNOWN_ID;
             return;
         }
diff --git a/app/src/main/java/org/schabi/newpipe/player/playback/CustomTrackSelector.java b/app/src/main/java/org/schabi/newpipe/player/playback/CustomTrackSelector.java
index d80ea5bae..45cf545ce 100644
--- a/app/src/main/java/org/schabi/newpipe/player/playback/CustomTrackSelector.java
+++ b/app/src/main/java/org/schabi/newpipe/player/playback/CustomTrackSelector.java
@@ -55,7 +55,7 @@ public class CustomTrackSelector extends DefaultTrackSelector {
     /** @see DefaultTrackSelector#selectTextTrack(TrackGroupArray, int[][], Parameters) */
     @Override
     protected TrackSelection selectTextTrack(TrackGroupArray groups, int[][] formatSupport,
-                                             Parameters params) throws ExoPlaybackException {
+                                             Parameters params) {
         TrackGroup selectedGroup = null;
         int selectedTrackIndex = 0;
         int selectedTrackScore = 0;
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
index 2c08f4f92..5ff766313 100644
--- a/app/src/main/java/org/schabi/newpipe/player/playqueue/AbstractInfoPlayQueue.java
+++ b/app/src/main/java/org/schabi/newpipe/player/playqueue/AbstractInfoPlayQueue.java
@@ -26,7 +26,7 @@ abstract class AbstractInfoPlayQueue<T extends ListInfo, U extends InfoItem> ext
     transient Disposable fetchReactor;
 
     AbstractInfoPlayQueue(final U item) {
-        this(item.getServiceId(), item.getUrl(), null, Collections.<StreamInfoItem>emptyList(), 0);
+        this(item.getServiceId(), item.getUrl(), null, Collections.emptyList(), 0);
     }
 
     AbstractInfoPlayQueue(final int serviceId,
diff --git a/app/src/main/java/org/schabi/newpipe/report/AcraReportSender.java b/app/src/main/java/org/schabi/newpipe/report/AcraReportSender.java
index 2d3226ab6..4ef075353 100644
--- a/app/src/main/java/org/schabi/newpipe/report/AcraReportSender.java
+++ b/app/src/main/java/org/schabi/newpipe/report/AcraReportSender.java
@@ -31,7 +31,7 @@ import org.schabi.newpipe.R;
 public class AcraReportSender implements ReportSender {
 
     @Override
-    public void send(@NonNull Context context, @NonNull CrashReportData report) throws ReportSenderException {
+    public void send(@NonNull Context context, @NonNull CrashReportData report) {
         ErrorActivity.reportError(context, report,
                 ErrorActivity.ErrorInfo.make(UserAction.UI_ERROR,"none",
                         "App crash, UI failure", R.string.app_ui_crash));
diff --git a/app/src/main/java/org/schabi/newpipe/settings/SelectChannelFragment.java b/app/src/main/java/org/schabi/newpipe/settings/SelectChannelFragment.java
index 0ebdbefe0..6d85d5967 100644
--- a/app/src/main/java/org/schabi/newpipe/settings/SelectChannelFragment.java
+++ b/app/src/main/java/org/schabi/newpipe/settings/SelectChannelFragment.java
@@ -89,7 +89,7 @@ public class SelectChannelFragment extends DialogFragment {
     @Override
     public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         View v = inflater.inflate(R.layout.select_channel_fragment, container, false);
-        recyclerView = (RecyclerView) v.findViewById(R.id.items_list);
+        recyclerView = v.findViewById(R.id.items_list);
         recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
         channelAdapter = new SelectChannelAdapter();
         recyclerView.setAdapter(channelAdapter);
diff --git a/app/src/main/java/org/schabi/newpipe/settings/SelectKioskFragment.java b/app/src/main/java/org/schabi/newpipe/settings/SelectKioskFragment.java
index 44cb16682..16ba6fec6 100644
--- a/app/src/main/java/org/schabi/newpipe/settings/SelectKioskFragment.java
+++ b/app/src/main/java/org/schabi/newpipe/settings/SelectKioskFragment.java
@@ -75,7 +75,7 @@ public class SelectKioskFragment extends DialogFragment {
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         View v = inflater.inflate(R.layout.select_kiosk_fragment, container, false);
-        recyclerView = (RecyclerView) v.findViewById(R.id.items_list);
+        recyclerView = v.findViewById(R.id.items_list);
         recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
         try {
             selectKioskAdapter = new SelectKioskAdapter();
diff --git a/app/src/main/java/org/schabi/newpipe/util/ExtractorHelper.java b/app/src/main/java/org/schabi/newpipe/util/ExtractorHelper.java
index e445233c3..fb9579802 100644
--- a/app/src/main/java/org/schabi/newpipe/util/ExtractorHelper.java
+++ b/app/src/main/java/org/schabi/newpipe/util/ExtractorHelper.java
@@ -183,7 +183,7 @@ public final class ExtractorHelper {
             cache.removeInfo(serviceId, url);
             load = loadFromNetwork;
         } else {
-            load = Maybe.concat(ExtractorHelper.<I>loadFromCache(serviceId, url),
+            load = Maybe.concat(ExtractorHelper.loadFromCache(serviceId, url),
                     loadFromNetwork.toMaybe())
                     .firstElement() //Take the first valid
                     .toSingle();
diff --git a/app/src/test/java/org/schabi/newpipe/local/subscription/services/ImportExportJsonHelperTest.java b/app/src/test/java/org/schabi/newpipe/local/subscription/services/ImportExportJsonHelperTest.java
index 4a8b3d8c8..7f5f818be 100644
--- a/app/src/test/java/org/schabi/newpipe/local/subscription/services/ImportExportJsonHelperTest.java
+++ b/app/src/test/java/org/schabi/newpipe/local/subscription/services/ImportExportJsonHelperTest.java
@@ -27,7 +27,7 @@ public class ImportExportJsonHelperTest {
     }
 
     @Test
-    public void testInvalidSource() throws Exception {
+    public void testInvalidSource() {
         List<String> invalidList = Arrays.asList(
                 "{}",
                 "",
diff --git a/app/src/test/java/org/schabi/newpipe/report/ErrorActivityTest.java b/app/src/test/java/org/schabi/newpipe/report/ErrorActivityTest.java
index 44a2f7cd0..ca6c76ff3 100644
--- a/app/src/test/java/org/schabi/newpipe/report/ErrorActivityTest.java
+++ b/app/src/test/java/org/schabi/newpipe/report/ErrorActivityTest.java
@@ -15,7 +15,7 @@ import static org.junit.Assert.assertNull;
  */
 public class ErrorActivityTest {
     @Test
-    public void getReturnActivity() throws Exception {
+    public void getReturnActivity() {
         Class<? extends Activity> returnActivity;
         returnActivity = ErrorActivity.getReturnActivity(MainActivity.class);
         assertEquals(MainActivity.class, returnActivity);
diff --git a/app/src/test/java/org/schabi/newpipe/util/ListHelperTest.java b/app/src/test/java/org/schabi/newpipe/util/ListHelperTest.java
index 278ea81e1..abc09dc98 100644
--- a/app/src/test/java/org/schabi/newpipe/util/ListHelperTest.java
+++ b/app/src/test/java/org/schabi/newpipe/util/ListHelperTest.java
@@ -45,7 +45,7 @@ public class ListHelperTest {
             new VideoStream("", MediaFormat.MPEG_4,   /**/ "1080p60", true));
 
     @Test
-    public void getSortedStreamVideosListTest() throws Exception {
+    public void getSortedStreamVideosListTest() {
         List<VideoStream> result = ListHelper.getSortedStreamVideosList(MediaFormat.MPEG_4, true, videoStreamsTestList, videoOnlyStreamsTestList, true);
 
         List<String> expected = Arrays.asList("144p", "240p", "360p", "480p", "720p", "720p60", "1080p", "1080p60", "1440p60", "2160p", "2160p60");
@@ -67,7 +67,7 @@ public class ListHelperTest {
     }
 
     @Test
-    public void getSortedStreamVideosExceptHighResolutionsTest() throws Exception {
+    public void getSortedStreamVideosExceptHighResolutionsTest() {
         ////////////////////////////////////
         // Don't show Higher resolutions //
         //////////////////////////////////
@@ -79,7 +79,7 @@ public class ListHelperTest {
     }
 
     @Test
-    public void getDefaultResolutionTest() throws Exception {
+    public void getDefaultResolutionTest() {
         List<VideoStream> testList = Arrays.asList(
                 new VideoStream("", MediaFormat.MPEG_4,   /**/ "720p"),
                 new VideoStream("", MediaFormat.v3GPP,    /**/ "240p"),
@@ -130,7 +130,7 @@ public class ListHelperTest {
     }
 
     @Test
-    public void getHighestQualityAudioFormatTest() throws Exception {
+    public void getHighestQualityAudioFormatTest() {
         AudioStream stream = audioStreamsTestList.get(ListHelper.getHighestQualityAudioIndex(MediaFormat.M4A, audioStreamsTestList));
         assertEquals(320, stream.average_bitrate);
         assertEquals(MediaFormat.M4A, stream.getFormat());
@@ -145,7 +145,7 @@ public class ListHelperTest {
     }
 
     @Test
-    public void getHighestQualityAudioFormatPreferredAbsent() throws Exception {
+    public void getHighestQualityAudioFormatPreferredAbsent() {
 
         //////////////////////////////////////////
         // Doesn't contain the preferred format //
@@ -186,13 +186,13 @@ public class ListHelperTest {
     }
 
     @Test
-    public void getHighestQualityAudioNull() throws Exception {
+    public void getHighestQualityAudioNull() {
         assertEquals(-1, ListHelper.getHighestQualityAudioIndex(null, null));
         assertEquals(-1, ListHelper.getHighestQualityAudioIndex(null, new ArrayList<AudioStream>()));
     }
 
     @Test
-    public void getLowestQualityAudioFormatTest() throws Exception {
+    public void getLowestQualityAudioFormatTest() {
         AudioStream stream = audioStreamsTestList.get(ListHelper.getMostCompactAudioIndex(MediaFormat.M4A, audioStreamsTestList));
         assertEquals(128, stream.average_bitrate);
         assertEquals(MediaFormat.M4A, stream.getFormat());
@@ -207,7 +207,7 @@ public class ListHelperTest {
     }
 
     @Test
-    public void getLowestQualityAudioFormatPreferredAbsent() throws Exception {
+    public void getLowestQualityAudioFormatPreferredAbsent() {
 
         //////////////////////////////////////////
         // Doesn't contain the preferred format //
@@ -250,13 +250,13 @@ public class ListHelperTest {
     }
 
     @Test
-    public void getLowestQualityAudioNull() throws Exception {
+    public void getLowestQualityAudioNull() {
         assertEquals(-1, ListHelper.getMostCompactAudioIndex(null, null));
         assertEquals(-1, ListHelper.getMostCompactAudioIndex(null, new ArrayList<AudioStream>()));
     }
 
     @Test
-    public void getVideoDefaultStreamIndexCombinations() throws Exception {
+    public void getVideoDefaultStreamIndexCombinations() {
         List<VideoStream> testList = Arrays.asList(
                 new VideoStream("", MediaFormat.MPEG_4,   /**/ "1080p"),
                 new VideoStream("", MediaFormat.MPEG_4,   /**/ "720p60"),
diff --git a/app/src/test/java/org/schabi/newpipe/util/QuadraticSliderStrategyTest.java b/app/src/test/java/org/schabi/newpipe/util/QuadraticSliderStrategyTest.java
index 8c8d52043..c652472d1 100644
--- a/app/src/test/java/org/schabi/newpipe/util/QuadraticSliderStrategyTest.java
+++ b/app/src/test/java/org/schabi/newpipe/util/QuadraticSliderStrategyTest.java
@@ -11,25 +11,25 @@ public class QuadraticSliderStrategyTest {
     private final SliderStrategy.Quadratic standard =
             new SliderStrategy.Quadratic(0f, 100f, 50f, STEP);
     @Test
-    public void testLeftBound() throws Exception {
+    public void testLeftBound() {
         assertEquals(standard.progressOf(0), 0);
         assertEquals(standard.valueOf(0), 0f, DELTA);
     }
 
     @Test
-    public void testCenter() throws Exception {
+    public void testCenter() {
         assertEquals(standard.progressOf(50), 50);
         assertEquals(standard.valueOf(50), 50f, DELTA);
     }
 
     @Test
-    public void testRightBound() throws Exception {
+    public void testRightBound() {
         assertEquals(standard.progressOf(100), 100);
         assertEquals(standard.valueOf(100), 100f, DELTA);
     }
 
     @Test
-    public void testLeftRegion() throws Exception {
+    public void testLeftRegion() {
         final int leftProgress = standard.progressOf(25);
         final double leftValue = standard.valueOf(25);
         assertTrue(leftProgress > 0 && leftProgress < 50);
@@ -37,7 +37,7 @@ public class QuadraticSliderStrategyTest {
     }
 
     @Test
-    public void testRightRegion() throws Exception {
+    public void testRightRegion() {
         final int leftProgress = standard.progressOf(75);
         final double leftValue = standard.valueOf(75);
         assertTrue(leftProgress > 50 && leftProgress < 100);
@@ -45,7 +45,7 @@ public class QuadraticSliderStrategyTest {
     }
 
     @Test
-    public void testConversion() throws Exception {
+    public void testConversion() {
         assertEquals(standard.progressOf(standard.valueOf(0)), 0);
         assertEquals(standard.progressOf(standard.valueOf(25)), 25);
         assertEquals(standard.progressOf(standard.valueOf(50)), 50);
@@ -54,7 +54,7 @@ public class QuadraticSliderStrategyTest {
     }
 
     @Test
-    public void testReverseConversion() throws Exception {
+    public void testReverseConversion() {
         // Need a larger delta since step size / granularity is too small and causes
         // floating point round-off errors during conversion
         final float largeDelta = 1f;
@@ -67,7 +67,7 @@ public class QuadraticSliderStrategyTest {
     }
 
     @Test
-    public void testQuadraticPropertyLeftRegion() throws Exception {
+    public void testQuadraticPropertyLeftRegion() {
         final double differenceCloserToCenter =
                 Math.abs(standard.valueOf(40) - standard.valueOf(45));
         final double differenceFurtherFromCenter =
@@ -76,7 +76,7 @@ public class QuadraticSliderStrategyTest {
     }
 
     @Test
-    public void testQuadraticPropertyRightRegion() throws Exception {
+    public void testQuadraticPropertyRightRegion() {
         final double differenceCloserToCenter =
                 Math.abs(standard.valueOf(75) - standard.valueOf(70));
         final double differenceFurtherFromCenter =
diff --git a/app/src/test/java/us/shandian/giga/get/DownloadManagerImplTest.java b/app/src/test/java/us/shandian/giga/get/DownloadManagerImplTest.java
index 6ff702273..49bfd4840 100644
--- a/app/src/test/java/us/shandian/giga/get/DownloadManagerImplTest.java
+++ b/app/src/test/java/us/shandian/giga/get/DownloadManagerImplTest.java
@@ -110,7 +110,7 @@ public class DownloadManagerImplTest {
     }
 
     @Test
-    public void resumeMission() throws Exception {
+    public void resumeMission() {
         DownloadMission mission = missions.get(0);
         mission.running = true;
         verify(mission, never()).start();
@@ -122,7 +122,7 @@ public class DownloadManagerImplTest {
     }
 
     @Test
-    public void pauseMission() throws Exception {
+    public void pauseMission() {
         DownloadMission mission = missions.get(0);
         mission.running = false;
         downloadManager.pauseMission(0);
@@ -133,7 +133,7 @@ public class DownloadManagerImplTest {
     }
 
     @Test
-    public void deleteMission() throws Exception {
+    public void deleteMission() {
         DownloadMission mission = missions.get(0);
         assertEquals(mission, downloadManager.getMission(0));
         downloadManager.deleteMission(0);
@@ -143,18 +143,18 @@ public class DownloadManagerImplTest {
     }
 
     @Test(expected = RuntimeException.class)
-    public void getMissionWithNegativeIndex() throws Exception {
+    public void getMissionWithNegativeIndex() {
         downloadManager.getMission(-1);
     }
 
     @Test
-    public void getMission() throws Exception {
+    public void getMission() {
         assertSame(missions.get(0), downloadManager.getMission(0));
         assertSame(missions.get(1), downloadManager.getMission(1));
     }
 
     @Test
-    public void sortByTimestamp() throws Exception {
+    public void sortByTimestamp() {
         ArrayList<DownloadMission> downloadMissions = new ArrayList<>();
         DownloadMission mission = new DownloadMission();
         mission.timestamp = 0;