title: How to avoid IntelliJ to reset language level?
body: <p>I am having troubles with this which have been answered dusin of times on this site.</p>
  <p>My take on the problem is a bit different. I have a project which builds fine using maven 3.5.x and java release 10 (configured in the maven-compiler-plugin)
  When looking in IntelliJ's project structure, all modules have language level 10 (but the projects settings is language level 6 and the chosen sdk in the project structure is 1.8...</p>
  <p>However, even if I change the sdk to java 10 and the projects language level to 10, the error pasted below still occurs... ????</p>
  <p>My IntelliJ version: IntelliJ IDEA 2018.2.5</p>
  <p>To reproduce this error:</p>
  <ul>
  <li><p>Check out from version control (GIT)</p>
  </li>
  <li><p>GitHub: <a href="https://github.com/jactor-rises/jactor-rises.git" rel="noreferrer">https://github.com/jactor-rises/jactor-rises.git</a></p>
  <p>Try to build it within IntelliJ:</p>
  </li>
  </ul>
  <blockquote>
  <p>Information:java: Errors occurred while compiling module
  'jactor-commons' Information:javac 10.0.1 was used to compile java
  sources Information:29/10/2018, 21:31 - Compilation completed with 1
  error and 0 warnings in 4 s 777 ms Error:java: release version 5 not
  supported</p>
  </blockquote>