Upgrade to mockito 2.25.1

Author: kazuki43zoo

pom.xml

@@ -215,13 +215,13 @@
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-core</artifactId>
-      <version>2.23.4</version>
+      <version>2.25.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-junit-jupiter</artifactId>
-      <version>2.23.4</version>
+      <version>2.25.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>