Cleanup javadoc warnings

Spigot-API-Patches/Add-EntityKnockbackByEntityEvent.patch

@@ -6,7 +6,7 @@ Subject: [PATCH] Add EntityKnockbackByEntityEvent
 
 diff --git a/src/main/java/com/destroystokyo/paper/event/entity/EntityKnockbackByEntityEvent.java b/src/main/java/com/destroystokyo/paper/event/entity/EntityKnockbackByEntityEvent.java
 new file mode 100644
-index 00000000..99f7ef70
+index 000000000..f6ef11624
 --- /dev/null
 +++ b/src/main/java/com/destroystokyo/paper/event/entity/EntityKnockbackByEntityEvent.java
 @@ -0,0 +0,0 @@
@@ -57,22 +57,31 @@ index 00000000..99f7ef70
 +        cancelled = cancel;
 +    }
 +
++    /**
++     * @return the entity which was knocked back
++     */
 +    @Override
 +    public LivingEntity getEntity() {
 +        return (LivingEntity) super.getEntity();
 +    }
 +
 +    /**
-+     * Returns the original knockback strength.
++     * @return the original knockback strength.
 +     */
 +    public float getKnockbackStrength() {
 +        return knockbackStrength;
 +    }
 +
++    /**
++     * @return the Entity which hit
++     */
 +    public Entity getHitBy() {
 +        return hitBy;
 +    }
 +
++    /**
++     * @return the acceleration that will be applied
++     */
 +    public Vector getAcceleration() {
 +        return acceleration;
 +    }