From bc68d9a039928480b34f8406a960ce04474a9700 Mon Sep 17 00:00:00 2001
From: zhukai <boness@qq.com>
Date: Mon, 16 Dec 2019 01:10:05 +0800
Subject: [PATCH] The method checkEmail do not have null check (#1481)

When the email is empty , it wll be nullpointexception.

So i fix it with null check.
---
 .../org/apache/dolphinscheduler/api/utils/CheckUtils.java     | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/utils/CheckUtils.java b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/utils/CheckUtils.java
index 9731745617..6c9f714721 100644
--- a/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/utils/CheckUtils.java
+++ b/dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/utils/CheckUtils.java
@@ -53,6 +53,10 @@ public class CheckUtils {
    * @return true if email regex valid, otherwise return false
    */
   public static boolean checkEmail(String email) {
+    if (StringUtils.isEmpty(email)){
+      return false;
+    }
+
     return email.length() > 5 && email.length() <= 40 && regexChecks(email, Constants.REGEX_MAIL_NAME) ;
   }