In the docs is written: Sets a property of this project. This method searches for a property with the given name in the following locations, and sets the property on the first location where it finds the property.
The project object itself. For example, the rootDir project property. The project’s Convention object. For example, the srcRootName java plugin property. The project’s additional properties. If the property is not found in any of these locations, it is added to the project’s additional properties.
My property is not found so the last action done. The property is added to additional proeprties - extra proeprties.(Or I am in wrong additional proeprties!=extra proeprties)? But I want to check if it comes from just from gradle.properties file.