1. Stack Overflow. Actor name is not unique invalidactornameexception. https: //www.stackoverflow.com/questions/11693562. Stack Overflow. Actor name is not unique invalidactornameexception. https: //www.stackoverflow.com/questions/11693562.
2. Stack Overflow. Actor supervised by BackofSupervisor loses stashed messages after restart. https://www.stackoverflow.com/questions/53933363. Stack Overflow. Actor supervised by BackofSupervisor loses stashed messages after restart. https://www.stackoverflow.com/questions/53933363.
3. Stack Overflow. actorselection with relative path messages going to dead letters. https://www.stackoverflow.com/questions/23835157. Stack Overflow. actorselection with relative path messages going to dead letters. https://www.stackoverflow.com/questions/23835157.
4. Stack Overflow. Akka actor-sender points to dead letters. https://www. stackoverflow.com/questions/43396596. Stack Overflow. Akka actor-sender points to dead letters. https://www. stackoverflow.com/questions/43396596.
5. Stack Overflow. Akka actor cannot send back the message. https://www. stackoverflow.com/questions/28211255. Stack Overflow. Akka actor cannot send back the message. https://www. stackoverflow.com/questions/28211255.