SPIGOT-2879: Change order of entity addition for ender pearls

nms-patches/ItemEnderPearl.patch

@@ -0,0 +1,35 @@
+--- a/net/minecraft/server/ItemEnderPearl.java
++++ b/net/minecraft/server/ItemEnderPearl.java
+@@ -10,18 +10,26 @@
+     public InteractionResultWrapper<ItemStack> a(World world, EntityHuman entityhuman, EnumHand enumhand) {
+         ItemStack itemstack = entityhuman.b(enumhand);
+ 
++        // CraftBukkit start - change order
++        if (!world.isClientSide) {
++            EntityEnderPearl entityenderpearl = new EntityEnderPearl(world, entityhuman);
++
++            entityenderpearl.a(entityhuman, entityhuman.pitch, entityhuman.yaw, 0.0F, 1.5F, 1.0F);
++            if (!world.addEntity(entityenderpearl)) {
++                if (entityhuman instanceof EntityPlayer) {
++                    ((EntityPlayer) entityhuman).getBukkitEntity().updateInventory();
++                }
++                return new InteractionResultWrapper(EnumInteractionResult.FAIL, itemstack);
++            }
++        }
++
+         if (!entityhuman.abilities.canInstantlyBuild) {
+             itemstack.subtract(1);
+         }
+ 
+         world.a((EntityHuman) null, entityhuman.locX, entityhuman.locY, entityhuman.locZ, SoundEffects.bj, SoundCategory.NEUTRAL, 0.5F, 0.4F / (ItemEnderPearl.j.nextFloat() * 0.4F + 0.8F));
+         entityhuman.di().a(this, 20);
+-        if (!world.isClientSide) {
+-            EntityEnderPearl entityenderpearl = new EntityEnderPearl(world, entityhuman);
+-
+-            entityenderpearl.a(entityhuman, entityhuman.pitch, entityhuman.yaw, 0.0F, 1.5F, 1.0F);
+-            world.addEntity(entityenderpearl);
+-        }
++        // CraftBukkit end
+ 
+         entityhuman.b(StatisticList.b((Item) this));
+         return new InteractionResultWrapper(EnumInteractionResult.SUCCESS, itemstack);