I'm working on an IntelliJ Plugin and would like to add a class chooser. Everything that I've read, including the documentation (see https://plugins.jetbrains.com/docs/intellij/file-and-class-choosers.html#class-and-package-choosers) and forum posts (see https://intellij-support.jetbrains.com/hc/en-us/community/posts/206951275-Idea-Community-Version), states that I should use the `com.intellij.ide.util.TreeClassChooserFactory` class. However, that class doesn't seem to be present. I can find the `com.intellij.ide.util.TreeFileChooserFactory` class, but that doesn't do what I need.
I'm using the latest version of IntelliJ IDEA Ultimate, 2021.3.1 (IU-213.6461.79), for development and the latest version of IntelliJ IDEA Community Edition, 2021.3.1 (IC-213.6461.79), as the Plugin SDK.
I've confirmed that the class is not present in the `com.jetbrains:ideaIC:2021.3.1` library (inside of `platform-api.jar`).
Is that class still supported? If not, would anyone be able to point me to some documentation that explains how this can be achieved in newer versions?
EDIT: For what it's worth, the source for that class is present in the sources artifact, but the .class file is missing.
Thank you in advance!