fix javadoc warnings

Author: ImMorpheus

src/main/java/org/spongepowered/api/entity/Entity.java

@@ -623,6 +623,7 @@ default Value.Mutable<VanishState> vanishState() {
      * @return Whether the entity is vanished
      * @deprecated Use {@link #vanishState() VanishState} instead
      */
+    @Deprecated
     default Value.Mutable<Boolean> vanish() {
         return this.requireValue(Keys.VANISH).asMutable();
     }
@@ -633,6 +634,7 @@ default Value.Mutable<Boolean> vanish() {
      * @return Whether the entity ignores collision with other entities
      * @deprecated Use {@link #vanishState()} instead
      */
+    @Deprecated
     default Value.Mutable<Boolean> vanishIgnoresCollision() {
         return this.requireValue(Keys.VANISH_IGNORES_COLLISION).asMutable();
     }
@@ -643,6 +645,7 @@ default Value.Mutable<Boolean> vanishIgnoresCollision() {
      * @return Whether the entity can be targeted for attack by another entity
      * @deprecated Use {@link #vanishState()} instead
      */
+    @Deprecated
     default Value.Mutable<Boolean> vanishPreventsTargeting() {
         return this.requireValue(Keys.VANISH_PREVENTS_TARGETING).asMutable();
     }

src/main/java/org/spongepowered/api/event/EventContextKeys.java

@@ -168,24 +168,28 @@ public final class EventContextKeys {
      * Used when leaves decay.
      * @deprecated Use {@link BlockTransaction#operation()} instead.
      */
+    @Deprecated
     public static final EventContextKey<ServerWorld> LEAVES_DECAY = EventContextKeys.key(ResourceKey.sponge("leaves_decay"), ServerWorld.class);
 
     /**
      * Used when flowing liquid causing another block to break.
      * @deprecated Use {@link BlockTransaction#operation()} instead.
      */
+    @Deprecated
     public static final EventContextKey<ServerWorld> LIQUID_BREAK = EventContextKeys.key(ResourceKey.sponge("liquid_break"), ServerWorld.class);
 
     /**
      * Used when flowing liquid moves to another location.
      * @deprecated Use {@link BlockTransaction#operation()} instead.
      */
+    @Deprecated
     public static final EventContextKey<ServerWorld> LIQUID_FLOW = EventContextKeys.key(ResourceKey.sponge("liquid_flow"), ServerWorld.class);
 
     /**
      * Used when liquid changes state.
      * @deprecated Use {@link BlockTransaction#operation()} instead.
      */
+    @Deprecated
     public static final EventContextKey<ServerWorld> LIQUID_MIX = EventContextKeys.key(ResourceKey.sponge("liquid_mix"), ServerWorld.class);
 
     /**