Developers are always looking for ways to speed things up. Long ago, one of the biggest speedups was incremental compilers and having them run every time we saved a file. Now that it's permeated modern tools, no one thinks twice about such a feature.

Something critically needed when it comes to building Spring Boot apps is the ability to detect a change in our code and relaunch the embedded container.

Thankfully, we just need one addition to our code we built in the previous chapter:

    compile("org.springframework.boot:spring-boot-devtools") 

So, this tiny module performs the following activities:

• Disables cache settings for autoconfigured components
• When it detects a change in code, it restarts the application, holding onto third...