[ci skip] clarify javadocs for Block#getDrops (#10153)

patches/api/Fix-upstream-javadocs.patch

@@ -215,6 +215,46 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
       *
       * @return Temperature of this block
       */
+@@ -0,0 +0,0 @@ public interface Block extends Metadatable, Translatable {
+     boolean applyBoneMeal(@NotNull BlockFace face);
+ 
+     /**
+-     * Returns a list of items which would drop by destroying this block
++     * Returns a list of items which could drop by destroying this block.
++     * <p>
++     * The items are not guaranteed to be consistent across multiple calls to this
++     * method as this just uses the block type's loot table.
+      *
+      * @return a list of dropped items for this type of block
+      */
+@@ -0,0 +0,0 @@ public interface Block extends Metadatable, Translatable {
+     Collection<ItemStack> getDrops();
+ 
+     /**
+-     * Returns a list of items which would drop by destroying this block with
+-     * a specific tool
++     * Returns a list of items which could drop by destroying this block with
++     * a specific tool.
++     * <p>
++     * The items are not guaranteed to be consistent across multiple calls to this
++     * method as this just uses the block type's loot table.
+      *
+      * @param tool The tool or item in hand used for digging
+      * @return a list of dropped items for this type of block
+@@ -0,0 +0,0 @@ public interface Block extends Metadatable, Translatable {
+     Collection<ItemStack> getDrops(@Nullable ItemStack tool);
+ 
+     /**
+-     * Returns a list of items which would drop by the entity destroying this
+-     * block with a specific tool
++     * Returns a list of items which could drop by the entity destroying this
++     * block with a specific tool.
++     * <p>
++     * The items are not guaranteed to be consistent across multiple calls to this
++     * method as this just uses the block type's loot table.
+      *
+      * @param tool The tool or item in hand used for digging
+      * @param entity the entity destroying the block
 diff --git a/src/main/java/org/bukkit/block/data/BlockData.java b/src/main/java/org/bukkit/block/data/BlockData.java
 index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
 --- a/src/main/java/org/bukkit/block/data/BlockData.java