diff --git a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/runner/MasterExecThread.java b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/runner/MasterExecThread.java
index 14b9a3aea6..097e8d74d2 100644
--- a/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/runner/MasterExecThread.java
+++ b/dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/master/runner/MasterExecThread.java
@@ -18,7 +18,6 @@ package org.apache.dolphinscheduler.server.master.runner;
 
 import com.alibaba.fastjson.JSON;
 import com.google.common.collect.Lists;
-import net.sf.jsqlparser.expression.NextValExpression;
 import org.apache.commons.io.FileUtils;
 import org.apache.dolphinscheduler.common.Constants;
 import org.apache.dolphinscheduler.common.enums.*;