This module is awesome because it's meant to help you avoid redeployment when you're working on a Spring Boot application. It is similar to JRebel, but this product is absolutely free, and you can include it as a part of your application by simply adding the following dependency:

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-devtools</artifactId>
  <optional>true</optional>
</dependency>

Once the dependency has been added, you just have to recompile the classes to trigger an application restart. Depending on your IDE configuration, this process will be done either automatically or manually.