From ef9f6da935d9d0636878750be3a642cfe88e8482 Mon Sep 17 00:00:00 2001
From: CraftBukkit/Spigot <noreply+git-craftbukkit@papermc.io>
Date: Sun, 22 Dec 2019 18:40:55 +1100
Subject: [PATCH] SPIGOT-5471: Allow empty title/author for books

By: md_5 <git@md-5.net>
---
 .../java/org/bukkit/craftbukkit/inventory/CraftMetaBook.java  | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/paper-server/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaBook.java b/paper-server/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaBook.java
index 6e2475b40e..ab7e3ba637 100644
--- a/paper-server/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaBook.java
+++ b/paper-server/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaBook.java
@@ -163,12 +163,12 @@ public class CraftMetaBook extends CraftMetaItem implements BookMeta {
 
     @Override
     public boolean hasAuthor() {
-        return !Strings.isNullOrEmpty(author);
+        return this.author != null;
     }
 
     @Override
     public boolean hasTitle() {
-        return !Strings.isNullOrEmpty(title);
+        return this.title != null;
     }
 
     @Override