From 1e4170e4e9896e0320773ad3413edd032bce5126 Mon Sep 17 00:00:00 2001
From: ag2s20150909 <ag2s20150909@gmail.com>
Date: Fri, 9 Apr 2021 03:18:47 +0800
Subject: [PATCH] =?UTF-8?q?js=20=E6=96=B9=E6=B3=95=E6=B7=BB=E5=8A=A0aes?=
 =?UTF-8?q?=E5=8A=A0=E5=AF=86=E8=A7=A3=E5=AF=86=E6=96=B9=E6=B3=95?=
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---
 epublib/src/main/java/me/ag2s/epublib/util/StringUtil.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/epublib/src/main/java/me/ag2s/epublib/util/StringUtil.java b/epublib/src/main/java/me/ag2s/epublib/util/StringUtil.java
index fa6757aaf..acb3093e9 100644
--- a/epublib/src/main/java/me/ag2s/epublib/util/StringUtil.java
+++ b/epublib/src/main/java/me/ag2s/epublib/util/StringUtil.java
@@ -282,6 +282,9 @@ public class StringUtil {
         if (m.find()) {
             s= m.group(1);
         }
+        if(s==null){
+            return "";
+        }
         //移除GBK中文全角空格
         s = s.replace("　", "");
         return s;