Fixes and additions to projectile API (#9237)

patches/api/0356-More-Projectile-API.patch

@@ -178,10 +178,18 @@ index 94e1a30ea1bc26821065a6d89c1f5669bd1d08ae..6ed83d3e4d23e0dc0e1b156a1ee221aa
 +    // Paper end
  }
 diff --git a/src/main/java/org/bukkit/entity/Projectile.java b/src/main/java/org/bukkit/entity/Projectile.java
-index a523fca4baab447181ef91df67fa69b24e010149..d97904540ff5cf103604862a5a1a3a41f56dfe33 100644
+index a523fca4baab447181ef91df67fa69b24e010149..81ff7003e15e209358e8434a6875af79a4eb57f2 100644
 --- a/src/main/java/org/bukkit/entity/Projectile.java
 +++ b/src/main/java/org/bukkit/entity/Projectile.java
-@@ -43,4 +43,80 @@ public interface Projectile extends Entity {
+@@ -12,6 +12,7 @@ public interface Projectile extends Entity {
+      * Retrieve the shooter of this projectile.
+      *
+      * @return the {@link ProjectileSource} that shot this projectile
++     * @see #getOwnerUniqueId()
+      */
+     @Nullable
+     public ProjectileSource getShooter();
+@@ -43,4 +44,89 @@ public interface Projectile extends Entity {
       */
      @Deprecated(forRemoval = true) // Paper
      public void setBounce(boolean doesBounce);
@@ -260,6 +268,15 @@ index a523fca4baab447181ef91df67fa69b24e010149..d97904540ff5cf103604862a5a1a3a41
 +     * @see #canHitEntity(Entity) 
 +     */
 +    void hitEntity(@org.jetbrains.annotations.NotNull Entity entity, @org.jetbrains.annotations.NotNull org.bukkit.util.Vector vector);
++
++    /**
++     * Gets the owner's UUID
++     *
++     * @return the owner's UUID, or null if not owned
++     * @see #getShooter()
++     */
++    @Nullable
++    java.util.UUID getOwnerUniqueId();
 +    // Paper end
  }
 diff --git a/src/main/java/org/bukkit/entity/ShulkerBullet.java b/src/main/java/org/bukkit/entity/ShulkerBullet.java