SpringBoot applications keeps rebooting all the time (restart loop) - spring.devtools

Okay, I found the problem related to our application restart via Spring Boot DevTools after some seconds just after the application started.

The log file folder was scanned by DevTools and because the application writes logs to this folder after starting, each start triggered a reload of the whole application via DevTools.

The solution is to exclude the log folder from the monitoring within the application.yml:

spring:
  devtools:
    restart:
      exclude: logs/**

If you´re using normal property files, it´s just the same but with (.) dots in between. See also http://www.logicbig.com/tutorials/spring-framework/spring-boot/restart-exclude/ for reference.