Migrate to JUnit5

partial-response/pom.xml

@@ -39,6 +39,11 @@
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.junit.vintage</groupId>
+            <artifactId>junit-vintage-engine</artifactId>
+            <scope>test</scope>
+        </dependency>
         <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-core</artifactId>