diff --git a/dolphinscheduler-server/src/test/java/org/apache/dolphinscheduler/server/worker/task/shell/ShellTaskTest.java b/dolphinscheduler-server/src/test/java/org/apache/dolphinscheduler/server/worker/task/shell/ShellTaskTest.java
index e08b00feda..b0abbb8934 100644
--- a/dolphinscheduler-server/src/test/java/org/apache/dolphinscheduler/server/worker/task/shell/ShellTaskTest.java
+++ b/dolphinscheduler-server/src/test/java/org/apache/dolphinscheduler/server/worker/task/shell/ShellTaskTest.java
@@ -28,7 +28,7 @@ import java.nio.file.Paths;
 import java.util.Date;
 import java.util.HashMap;
 import java.util.Map;
-
+import java.util.ArrayList;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;