java9-module-refactoring

Code for Talk: Refactoring your code to Java 9 modules

Slides and Abstract on my website: http://rgra.github.io

Goal: Create two modular applications, one for a Vet and one for a Car Repair Shop.

Use the provided scripts to compile and run the applications. Java 9 needs to be installed and the JAVA9 environment variable must point to the Java 9 /bin directory.

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Initial code example with a simple JavaFX Application for a Vet.

It uses the commons.lang Jar for toString operations in Customer.

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Refactoring Step 1: Add Sub-Packages for technical layers

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Refactoring Step 2: Creating Modules by splitting up the existing code

• model
• ui
• pet
• app

Uses a modified commons-lang-2.6.jar with Automatic-Module-Name in MANIFEST.MF.

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Refactoring Step 3: Resolving TODO in CustomerView with ServiceLoader

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Refactoring Step 4:

• Creating a general App Module
• Creating a new Car Module, similar to the Pet Module
• Resolving TODO in VisitDao
• Refactoring vet.app to use the general app
• Creating car.app which references on the Car Module instead of the Pet module

This also adds a script for using the jlink to create platform specific standalone versions of the two applications.