Removed redundant (non-)nullable annotations from boss bar.

api/src/main/java/com/velocitypowered/api/util/bossbar/BossBar.java

@@ -3,7 +3,6 @@ package com.velocitypowered.api.util.bossbar;
 import com.velocitypowered.api.proxy.Player;
 import java.util.Collection;
 import net.kyori.text.Component;
-import org.checkerframework.checker.nullness.qual.NonNull;
 
 /**
  * Represents a boss bar, which can be send to a (group of) player(s).
@@ -25,7 +24,7 @@ public interface BossBar {
    *
    * @param player the player you wish to add
    */
-  void addPlayer(@NonNull Player player);
+  void addPlayer(Player player);
 
   /**
    * Removes player from this boss bar. This removes the player from {@link #getPlayers()} and makes
@@ -33,7 +32,7 @@ public interface BossBar {
    *
    * @param player the player you wish to remove
    */
-  void removePlayer(@NonNull Player player);
+  void removePlayer(Player player);
 
   /**
    * Removes all specified players from this boss bar.
@@ -55,7 +54,6 @@ public interface BossBar {
    *
    * @return title
    */
-  @NonNull
   Component getTitle();
 
   /**
@@ -63,7 +61,7 @@ public interface BossBar {
    *
    * @param title new title
    */
-  void setTitle(@NonNull Component title);
+  void setTitle(Component title);
 
   /**
    * Gets the boss bar's percent.
@@ -93,7 +91,6 @@ public interface BossBar {
    *
    * @return boss bar color
    */
-  @NonNull
   BossBarColor getColor();
 
   /**
@@ -101,14 +98,13 @@ public interface BossBar {
    *
    * @param color the color you wish the boss bar be displayed with
    */
-  void setColor(@NonNull BossBarColor color);
+  void setColor(BossBarColor color);
 
   /**
    * Gets the overlay of the boss bar.
    *
    * @return boss bar overlay
    */
-  @NonNull
   BossBarOverlay getOverlay();
 
   /**
@@ -116,7 +112,7 @@ public interface BossBar {
    *
    * @param overlay the overlay you wish the boss bar be displayed with
    */
-  void setOverlay(@NonNull BossBarOverlay overlay);
+  void setOverlay(BossBarOverlay overlay);
 
   /**
    * Returns whenever this boss bar is visible to all added {@link #getPlayers()}. By default, it

proxy/src/main/java/com/velocitypowered/proxy/util/bossbar/VelocityBossBar.java

@@ -20,8 +20,6 @@ import java.util.Set;
 import java.util.UUID;
 import net.kyori.text.Component;
 import net.kyori.text.serializer.gson.GsonComponentSerializer;
-import org.checkerframework.checker.nullness.qual.NonNull;
-import org.checkerframework.checker.nullness.qual.Nullable;
 
 public class VelocityBossBar implements com.velocitypowered.api.util.bossbar.BossBar {
 
@@ -55,7 +53,7 @@ public class VelocityBossBar implements com.velocitypowered.api.util.bossbar.Bos
   }
 
   @Override
-  public void addPlayers(@NonNull Iterable<Player> players) {
+  public void addPlayers(Iterable<Player> players) {
     checkNotNull(players, "players");
     for (Player player : players) {
       addPlayer(player);
@@ -63,7 +61,7 @@ public class VelocityBossBar implements com.velocitypowered.api.util.bossbar.Bos
   }
 
   @Override
-  public void addPlayer(@NonNull Player player) {
+  public void addPlayer(Player player) {
     checkNotNull(player, "player");
     if (!players.contains(player)) {
       players.add(player);
@@ -74,7 +72,7 @@ public class VelocityBossBar implements com.velocitypowered.api.util.bossbar.Bos
   }
 
   @Override
-  public void removePlayer(@NonNull Player player) {
+  public void removePlayer(Player player) {
     checkNotNull(player, "player");
     players.remove(player);
     if (player.isActive()) {
@@ -83,7 +81,7 @@ public class VelocityBossBar implements com.velocitypowered.api.util.bossbar.Bos
   }
 
   @Override
-  public void removePlayers(@NonNull Iterable<Player> players) {
+  public void removePlayers(Iterable<Player> players) {
     checkNotNull(players, "players");
     for (Player player : players) {
       removePlayer(player);
@@ -96,12 +94,12 @@ public class VelocityBossBar implements com.velocitypowered.api.util.bossbar.Bos
   }
 
   @Override
-  public @NonNull Component getTitle() {
+  public Component getTitle() {
     return title;
   }
 
   @Override
-  public void setTitle(@NonNull Component title) {
+  public void setTitle(Component title) {
     this.title = checkNotNull(title, "title");
     if (visible) {
       BossBar bar = new BossBar();
@@ -137,17 +135,17 @@ public class VelocityBossBar implements com.velocitypowered.api.util.bossbar.Bos
   }
 
   @Override
-  public @Nullable Collection<Player> getPlayers() {
+  public Collection<Player> getPlayers() {
     return ImmutableList.copyOf(players);
   }
 
   @Override
-  public @NonNull BossBarColor getColor() {
+  public BossBarColor getColor() {
     return color;
   }
 
   @Override
-  public void setColor(@NonNull BossBarColor color) {
+  public void setColor(BossBarColor color) {
     this.color = checkNotNull(color, "color");
     if (visible) {
       sendDivisions(color, overlay);
@@ -155,12 +153,12 @@ public class VelocityBossBar implements com.velocitypowered.api.util.bossbar.Bos
   }
 
   @Override
-  public @NonNull BossBarOverlay getOverlay() {
+  public BossBarOverlay getOverlay() {
     return overlay;
   }
 
   @Override
-  public void setOverlay(@NonNull BossBarOverlay overlay) {
+  public void setOverlay(BossBarOverlay overlay) {
     this.overlay = checkNotNull(overlay, "overlay");
     if (visible) {
       sendDivisions(color, overlay);