title: Spring Boot detect missing Translation
body: <p>I'm using Spring Boot v2.4.1 and I have different <code>message.properties</code> for different languages. For example <code>message.properties</code>, <code>message-fr.properties</code>, <code>message-pt.properties</code> and so on.</p>
  <p>Normally, I insert messages in the default language (<code>message.properties</code>) as I work and the need for a new localized text appears. If I'm inspired in the same moment I add it to the default language I add it to all the other languages. But I'm not inspired 100% of the time.</p>
  <p>So I (or my client) realize a translation is missing when we switch from the default language to any other.</p>
  <p>FWIW I'm using IntelliJ IDEA and Gradle</p>
  <p>I'd like to know if there's a way (maybe an IDE or Gradle plugin) to rise an error if a translation is missing. I mean a message-key is present in the default language <code>.properties</code> file but it's not in the others.</p>
  <h3>UPDATE</h3>
  <p>Also, I know that Android Studio (which is base on intelliJ and uses Gradle) throws and error if a translation is missing. I'd like to reproduce that same behavior.</p>