PaperMC/paper-server/nms-patches/net/minecraft/world/level/block/BlockWaterLily.patch

--- a/net/minecraft/world/level/block/BlockWaterLily.java
+++ b/net/minecraft/world/level/block/BlockWaterLily.java
@@ -13,6 +13,10 @@
 import net.minecraft.world.phys.shapes.VoxelShape;
 import net.minecraft.world.phys.shapes.VoxelShapeCollision;
 
+// CraftBukkit start
+import org.bukkit.craftbukkit.event.CraftEventFactory;
+// CraftBukkit end
+
 public class BlockWaterLily extends BlockPlant {
 
     protected static final VoxelShape AABB = Block.box(1.0D, 0.0D, 1.0D, 15.0D, 1.5D, 15.0D);
@@ -25,6 +29,11 @@
     public void entityInside(IBlockData iblockdata, World world, BlockPosition blockposition, Entity entity) {
         super.entityInside(iblockdata, world, blockposition, entity);
         if (world instanceof WorldServer && entity instanceof EntityBoat) {
+            // CraftBukkit start
+            if (!CraftEventFactory.callEntityChangeBlockEvent(entity, blockposition, Blocks.AIR.defaultBlockState())) {
+                return;
+            }
+            // CraftBukkit end
             world.destroyBlock(new BlockPosition(blockposition), true, entity);
         }