IntelliJ IDEA fails to create output folder for maven module without Java sources

Hi,

I have a multi-module maven project. One of the modules just has resources, but no Java sources. When building the project with Ultimate 2018.2, no output folder is created for this module at target/classes. This has the effect that it is not possible to run/debug any classes from other modules that use resources from this module, since the generated resources are not on any classpath. The same maven project works well in my former IntelliJ version 15.0.3. Here the output folder is created correctly for the maven module that contains just the resources, and everything works fine.

Any advice?

Environment: Windows 10, Java 8

Best regards,

Udo