From 268860e3ac26b13062e2dfad77956eb39bd79362 Mon Sep 17 00:00:00 2001
From: Horis <8674809+821938089@users.noreply.github.com>
Date: Wed, 21 Aug 2024 10:45:57 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../epublib/util/commons/io/XmlStreamReader.java    | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/modules/book/src/main/java/me/ag2s/epublib/util/commons/io/XmlStreamReader.java b/modules/book/src/main/java/me/ag2s/epublib/util/commons/io/XmlStreamReader.java
index f1a92b976..c1e8c056d 100644
--- a/modules/book/src/main/java/me/ag2s/epublib/util/commons/io/XmlStreamReader.java
+++ b/modules/book/src/main/java/me/ag2s/epublib/util/commons/io/XmlStreamReader.java
@@ -29,6 +29,7 @@ import java.io.StringReader;
 import java.net.HttpURLConnection;
 import java.net.URL;
 import java.net.URLConnection;
+import java.nio.charset.Charset;
 import java.text.MessageFormat;
 import java.util.Locale;
 import java.util.Objects;
@@ -758,7 +759,17 @@ public class XmlStreamReader extends Reader {
                 }
             }
         }
-        return encoding;
+        boolean isSupportedEncoding;
+        try {
+            isSupportedEncoding = Charset.isSupported(encoding);
+        } catch (Exception e) {
+            return null;
+        }
+        if (isSupportedEncoding) {
+            return encoding;
+        } else {
+            return null;
+        }
     }
 
     /**