Update launchProjectile API (#11300)

patches/api/0053-Fix-upstream-javadocs.patch

@@ -1719,6 +1719,32 @@ index b84b37fe27d84574dc5897285f1d9a1437bd322c..281ae60a6be7e39aab4f27b4c7de3d49
       *
       * @return Set containing all the channels that this client may accept.
       */
+diff --git a/src/main/java/org/bukkit/projectiles/ProjectileSource.java b/src/main/java/org/bukkit/projectiles/ProjectileSource.java
+index eabd8b926ec1c934cd7e77b7cc6adfae16771021..8557bfefaf02538dec95adb29734ae2cf50f3f8c 100644
+--- a/src/main/java/org/bukkit/projectiles/ProjectileSource.java
++++ b/src/main/java/org/bukkit/projectiles/ProjectileSource.java
+@@ -12,6 +12,10 @@ public interface ProjectileSource {
+ 
+     /**
+      * Launches a {@link Projectile} from the ProjectileSource.
++     * <p>
++     * The family of launchProjectile methods only promise the ability to launch projectile types
++     * that the {@link ProjectileSource} is capable of firing in vanilla.
++     * Any other types of projectiles *may* be implemented but are not part of the method contract.
+      *
+      * @param <T> a projectile subclass
+      * @param projectile class of the projectile to launch
+@@ -23,6 +27,10 @@ public interface ProjectileSource {
+     /**
+      * Launches a {@link Projectile} from the ProjectileSource with an
+      * initial velocity.
++     * <p>
++     * The family of launchProjectile methods only promise the ability to launch projectile types
++     * that the {@link ProjectileSource} is capable of firing in vanilla.
++     * Any other types of projectiles *may* be implemented but are not part of the method contract.
+      *
+      * @param <T> a projectile subclass
+      * @param projectile class of the projectile to launch
 diff --git a/src/main/java/org/bukkit/scoreboard/Objective.java b/src/main/java/org/bukkit/scoreboard/Objective.java
 index 22b1dc5fd4d453161a5ee520072f8e8f955b3a80..a625bcab8e77b05b3341a52c708fae1542b7e3d5 100644
 --- a/src/main/java/org/bukkit/scoreboard/Objective.java