Platform default open processor: access opened project

In my CustomProjectOpenProcessor.doOpenProject method, I call the following after creating a CMakeList file:

PlatformProjectOpenProcessor.getInstance().doOpenProject(projectDir, oldProject, true)

But it seems to alway return a null project.

I need to persist a few project data at the new Project level through PropertiesComponent after the import (this data is created before I call "PlatformProjectOpenProcessor.getInstance().doOpenProject"). How can I do that?