Gradle plugin that adds dependencies and example project in the same project

I want to create in the same project so that my IDE allows me to code them all, the following subprojects:

• java package
• a gradle that adds a dependency on a java project (artifact)
• a gradle sample that this plugin uses

The problem is that the sample to be evaluated will have to use a plugin, then the plugin will add the dependency.

BUT in order to compile the java package I need all the subprojects to evaluate ... including the sample. And the sample cannot be evaluated as it needs a java dependency ...

How can i do this?

I still didn't find all three subprojects in one project. I tried setting up on demand, but the sample buildScript is still evaluating. My only job is to remove the sample subproject from the project.