NoClassDefFoundError in IntelliJ unittest backoffice renderer

[former_member623026]

In my backoffice-extension, I've a class A extends BulkEditAttributesSelectorRenderer. I cannot run the unit test class of A in IntelliJ because of the NoClassDefFoundError:

java.lang.NoClassDefFoundError: com/hybris/backoffice/bulkedit/renderer/BulkEditAttributesSelectorRenderer

But in the same extension, I can run the unit test class of an another class B, which extends DefaultEditorAreaSectionRenderer in IntelliJ well.

Any idea how to fix the issue? I assume it's something with settings in intelliJ but after googling and try&error no success. Thanks in advance