From 1a355b26cdaf37bd5c3246c2fb4b87dec587de6e Mon Sep 17 00:00:00 2001
From: tanliansheng <tanliansheng2011@gmail.com>
Date: Tue, 4 Apr 2023 16:59:30 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=9D=E8=AF=81=E6=8B=BF=E5=88=B0=E7=9A=84?=
 =?UTF-8?q?=E9=9B=86=E5=90=88=E4=B8=AD=E6=B2=A1=E6=9C=89null=E5=80=BC?=
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---
 src/main/java/org/crazycake/shiro/RedisSessionDAO.java | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/main/java/org/crazycake/shiro/RedisSessionDAO.java b/src/main/java/org/crazycake/shiro/RedisSessionDAO.java
index 69220c68..6069a85b 100644
--- a/src/main/java/org/crazycake/shiro/RedisSessionDAO.java
+++ b/src/main/java/org/crazycake/shiro/RedisSessionDAO.java
@@ -150,8 +150,11 @@ public Collection<Session> getActiveSessions() {
 			Set<byte[]> keys = redisManager.keys(keySerializer.serialize(this.keyPrefix + "*"));
 			if (keys != null && keys.size() > 0) {
 				for (byte[] key:keys) {
-					Session s = (Session) valueSerializer.deserialize(redisManager.get(key));
-					sessions.add(s);
+                    Object deserialize = valueSerializer.deserialize(redisManager.get(key));
+                    if (deserialize == null) {
+                        continue;
+                    }
+                    sessions.add((Session) deserialize);
 				}
 			}
 		} catch (SerializationException e) {