From 1a460f1b2982eb2cc5e3e9d489dfc5aabe34ba98 Mon Sep 17 00:00:00 2001
From: heavyrain2012 <heavyrain.lee@gmail.com>
Date: Sat, 3 Apr 2021 14:33:35 +0800
Subject: [PATCH] =?UTF-8?q?=E6=A3=80=E6=9F=A5=E5=8F=82=E6=95=B0=E7=9A=84?=
 =?UTF-8?q?=E6=9C=89=E6=95=88=E6=80=A7?=
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---
 .../java/io/moquette/persistence/MemoryMessagesStore.java     | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java b/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java
index 1d902dbb..8422f203 100755
--- a/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java
+++ b/broker/src/main/java/io/moquette/persistence/MemoryMessagesStore.java
@@ -2207,6 +2207,10 @@ public class MemoryMessagesStore implements IMessagesStore {
             builder.setExtra(userInfo.getExtra());
         }
         if((flag & Update_User_Name) > 0) {
+            if(StringUtil.isNullOrEmpty(userInfo.getName())) {
+                LOG.error("Modify user info failure, name not exist!");
+                return ErrorCode.INVALID_PARAMETER;
+            }
             builder.setName(userInfo.getName());
         }
         builder.setUpdateDt(System.currentTimeMillis());