Architecture tests for executor-pool

roster/pom.xml

@@ -83,6 +83,12 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-mongodb</artifactId>
         </dependency>
+        <dependency>
+            <groupId>com.tngtech.archunit</groupId>
+            <artifactId>archunit-junit4</artifactId>
+            <version>0.22.0</version>
+            <scope>test</scope>
+        </dependency>
 
 
     </dependencies>