package org.railwaystations.api.monitoring;

public interface Monitor {
    void sendMessage(final String message);

    void sendMessage(String responseUrl, String message);
}

@@ -131,16 +131,22 @@
 Message(
+final 
 String r
@@ -156,16 +156,22 @@
 onseUrl,
+ final
  String 

add final modifier