Maven dependency in project module

Dear Community,

please help me to resolve my problem or to understand the mechanism of Maven dependencies in module.

I have simple Maven project (named "Common") with the only one dependency:

<dependencies>
    <dependency>
        <groupId>org.geotools</groupId>
        <artifactId>gt-main</artifactId>
        <version>19-RC1</version>
    </dependency>
</dependencies>

And one class with some imports:

import com.vividsolutions.jts.geom.Coordinate;
import com.vividsolutions.jts.geom.Geometry;
import com.vividsolutions.jts.geom.GeometryFactory;
import com.vividsolutions.jts.geom.Polygon;

It's all working good.

Now I would like to move it to the module. So I create new module in this project (named "gis"), mark source root, and simply copy-paste code from project folder to module folder. Project dependency appears both for project and module:

But all imports are marked GRAY. "Cannot find symbol...":

Also in project settings there are no dependencies for "gis" module:

I tried to run "mvn clean install" and it completes successfully: build project, module and put them to local repo.

Also I tried to use managed dependencies - with the same failed result.

So the question is - what am I doing wrong? Why imports work good in project, but give errors in module?

Thanks in advance,

Pavel.