No way to delete a module from a Java Modular Project.

Steps to simulate:

Create Java Modular Project:

• Ctrl+shift+n > Dialogue box will be opened > from Categories select Java with Ant > from Projects select Java Modular Project > click Next > enter project name in Project Name box > click on Finish.

          After performing above steps Java Modular Project will be created.

Create Module under Java Modular Project:

• Right click on created project > New > Module > Dialogue box will be opened > enter module name in Module Name field > click on Finish.

After performing above steps Module will be created.

then Try to right click on module that you created , you would see there will no Delete option.