title: LinkageError when trying to run Java-project in jdk 18.0.1.1
body: <p>I have launched a project which was currently running in <code>jdk 17.0.3</code>, in the new <code>jdk 18.0.1.1</code> and got the following error:</p>
  <pre><code>Fehler: Beim Laden der Klasse launching.Main ist ein LinkageError aufgetreten
      java.lang.UnsupportedClassVersionError: launching/Main (class file version 61.65535) was compiled with preview features that are unsupported. This version of the Java Runtime only recognizes preview features for class file version 62.65535
  </code></pre>
  <p>I have tried cleaning and rebuilding, and the preview features are also enabled for the new version. (Both in the vm args and the .settings-file). Playing around with the jre-settings hasn't helped, and I'm afraid to break something.</p>