You can import IntelliJ modules into an existing Sonargraph project or while creating a new system.

To import IntelliJ modules directly into an already existing Sonargraph project use "File" → "New" → "Module" → "Java Modules from IntelliJ project/file"

Select either the IntelliJ project or file to import content from. Or select a directory to scan for IntelliJ module files. Then you can choose those projects and root directory paths that should be imported and those that should not.

Sonargraph will let you know about content that is already in the software system, empty or irrelevant directory paths and dependencies between modules.