Don't throw NPE for unplaced blockstate on #getDrops (#10366)

patches/api/0374-Add-getDrops-to-BlockState.patch

@@ -7,10 +7,10 @@ Originally added isPreferredTool to BlockData but
 upstream added that.
 
 diff --git a/src/main/java/org/bukkit/block/BlockState.java b/src/main/java/org/bukkit/block/BlockState.java
-index c439cf0bb6c50db2b3304c60e50046f096392f9f..ef35316fa66ac8d9c7836b9c8af56dcefbf6ff2e 100644
+index c439cf0bb6c50db2b3304c60e50046f096392f9f..19837f0eae67854f48e777bc7d4a13b53fa4b436 100644
 --- a/src/main/java/org/bukkit/block/BlockState.java
 +++ b/src/main/java/org/bukkit/block/BlockState.java
-@@ -243,5 +243,34 @@ public interface BlockState extends Metadatable {
+@@ -243,5 +243,41 @@ public interface BlockState extends Metadatable {
       * @return true if collidable
       */
      boolean isCollidable();
@@ -19,9 +19,12 @@ index c439cf0bb6c50db2b3304c60e50046f096392f9f..ef35316fa66ac8d9c7836b9c8af56dce
 +     * Returns an immutable list of items which would drop by destroying this block state.
 +     *
 +     * @return an immutable list of dropped items for the block state
++     * @throws IllegalStateException if this block state is not placed
 +     */
 +    @NotNull
-+    java.util.@org.jetbrains.annotations.Unmodifiable Collection<org.bukkit.inventory.ItemStack> getDrops();
++    default java.util.@org.jetbrains.annotations.Unmodifiable Collection<org.bukkit.inventory.ItemStack> getDrops() {
++        return this.getDrops(null);
++    }
 +
 +    /**
 +     * Returns an immutable list of items which would drop by destroying this block state
@@ -29,9 +32,12 @@ index c439cf0bb6c50db2b3304c60e50046f096392f9f..ef35316fa66ac8d9c7836b9c8af56dce
 +     *
 +     * @param tool The tool or item in hand used for digging
 +     * @return an immutable list of dropped items for the block state
++     * @throws IllegalStateException if this block state is not placed
 +     */
 +    @NotNull
-+    java.util.@org.jetbrains.annotations.Unmodifiable Collection<org.bukkit.inventory.ItemStack> getDrops(@Nullable org.bukkit.inventory.ItemStack tool);
++    default java.util.@org.jetbrains.annotations.Unmodifiable Collection<org.bukkit.inventory.ItemStack> getDrops(@Nullable org.bukkit.inventory.ItemStack tool) {
++        return this.getDrops(tool, null);
++    }
 +
 +    /**
 +     * Returns an immutable list of items which would drop by the entity destroying this
@@ -40,6 +46,7 @@ index c439cf0bb6c50db2b3304c60e50046f096392f9f..ef35316fa66ac8d9c7836b9c8af56dce
 +     * @param tool The tool or item in hand used for digging
 +     * @param entity the entity destroying the block
 +     * @return an immutable list of dropped items for the block state
++     * @throws IllegalStateException if this block state is not placed
 +     */
 +    @NotNull
 +    java.util.@org.jetbrains.annotations.Unmodifiable Collection<org.bukkit.inventory.ItemStack> getDrops(@Nullable org.bukkit.inventory.ItemStack tool, @Nullable org.bukkit.entity.Entity entity);

patches/server/0788-Add-getDrops-to-BlockState.patch

@@ -7,26 +7,17 @@ Originally added isPreferredTool to BlockData but
 upstream added that.
 
 diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
-index 08716e757b2e100f7bc47a046f02db664d882aba..d11d854ae90b99aa2ce227994d07fe1fe9b4a60a 100644
+index 08716e757b2e100f7bc47a046f02db664d882aba..2cfaa59a0bb6b5253b5a8dcc38ae65e0f085fd3f 100644
 --- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
 +++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
-@@ -337,5 +337,33 @@ public class CraftBlockState implements BlockState {
+@@ -337,5 +337,24 @@ public class CraftBlockState implements BlockState {
      public boolean isCollidable() {
          return this.data.getBlock().hasCollision;
      }
 +
 +    @Override
-+    public java.util.Collection<org.bukkit.inventory.ItemStack> getDrops() {
-+        return this.getDrops(null);
-+    }
-+
-+    @Override
-+    public java.util.Collection<org.bukkit.inventory.ItemStack> getDrops(org.bukkit.inventory.ItemStack item) {
-+        return this.getDrops(item, null);
-+    }
-+
-+    @Override
 +    public java.util.Collection<org.bukkit.inventory.ItemStack> getDrops(org.bukkit.inventory.ItemStack item, org.bukkit.entity.Entity entity) {
++        this.requirePlaced();
 +        net.minecraft.world.item.ItemStack nms = org.bukkit.craftbukkit.inventory.CraftItemStack.asNMSCopy(item);
 +
 +        // Modelled off EntityHuman#hasBlock