unnamed-module

I have created a multimodule project with the following structure myproject |- mymodule |- src |- main |- java |- com |- mymodule |- Util.java |-newmodule |-src |-main |-java |-com |-newmodule |- Main.java |-module-info.java Now i want to use Util.java which is a non modularized code in a modularized module newmodule. i have declared following in newmodule module newmodule { requires mymodule; } Project is compiling fine, but Intellij is showing module not found and package com.mymodule is declared in unnamed module , module 'newmodule' does not read it. How to resolve this issue? And one more

I am trying to understand how JPMS works. From here The classpath is not completely gone yet. All JARs (modular or not) and classes on the classpath will be contained in the Unnamed Module. Similar to automatic modules, it exports all packages and reads all other modules. But it does not have a name, obviously. For that reason, it cannot be required and read by named application modules. The unnamed module in turn can access all other modules. Please, note ...on the classpath will be contained in the Unnamed Module . Module is singular. From here For compatibility, all code on the classpath is