Add slf4j dependency;

Author: LamGC

pom.xml

@@ -54,6 +54,19 @@
       <version>4.11</version>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-api</artifactId>
+      <version>1.7.29</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-log4j12</artifactId>
+      <version>1.7.29</version>
+      <scope>test</scope>
+    </dependency>
+
   </dependencies>
 
   <distributionManagement>