Minor misc changes

sponge/src/main/java/me/lucko/luckperms/sponge/LPSpongeBootstrap.java

@@ -262,14 +262,13 @@ public class LPSpongeBootstrap implements LuckPermsBootstrap {
         return getClass().getClassLoader().getResourceAsStream(path);
     }
 
-    @Nullable
     @Override
-    public Player getPlayer(UUID uuid) {
+    public Optional<Player> getPlayer(UUID uuid) {
         if (!getGame().isServerAvailable()) {
-            return null;
+            return Optional.empty();
         }
 
-        return getGame().getServer().getPlayer(uuid).orElse(null);
+        return getGame().getServer().getPlayer(uuid);
     }
 
     @Override

sponge/src/main/java/me/lucko/luckperms/sponge/LPSpongePlugin.java

@@ -229,11 +229,7 @@ public class LPSpongePlugin extends AbstractLuckPermsPlugin {
 
     @Override
     public Optional<Contexts> getContextForUser(User user) {
-        Player player = this.bootstrap.getPlayer(user.getUuid());
-        if (player == null) {
-            return Optional.empty();
-        }
-        return Optional.of(this.contextManager.getApplicableContexts(player));
+        return this.bootstrap.getPlayer(user.getUuid()).map(player -> this.contextManager.getApplicableContexts(player));
     }
 
     @Override