Fix wrong Java docs

src/main/java/org/bukkit/block/BlockType.java

@@ -3053,7 +3053,7 @@ public interface BlockType<B extends BlockData> extends Keyed, Translatable {
     /**
      * Returns true if this BlockType has a corresponding {@link ItemType}.
      *
-     * @return true if there is an ItemType with the same key, otherwise false
+     * @return true if there is a corresponding ItemType, otherwise false
      * @see #getItemType()
      */
     boolean hasItemType();

src/main/java/org/bukkit/inventory/ItemType.java

@@ -1282,7 +1282,7 @@ public interface ItemType extends Keyed, Translatable {
     /**
      * Returns true if this ItemType has a corresponding {@link BlockType}.
      *
-     * @return true if there is a BlockType with the same key, otherwise false
+     * @return true if there is a corresponding BlockType, otherwise false
      * @see #getBlockType()
      */
     boolean hasBlockType();