Major refactor

pom.xml

@@ -131,6 +131,12 @@
             <artifactId>spring-security-test</artifactId>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.jetbrains</groupId>
+            <artifactId>annotations</artifactId>
+            <version>13.0</version>
+            <scope>compile</scope>
+        </dependency>
     </dependencies>
 
     <build>