food app project

structure

modules:

food.console.app
- module for listing recipes
- has a compile time dependency on the recipe interface
- has runtime dependencies on modules containing recipies
food.recipe
- module defining recipe interface
food.simple
- module for containing simple recipes
- has a compile time dependency on recipe interface
food.complex
- module for containing complex recipes
- has a compile time dependency on recipe interface

intellij

Module dependencies will have to be manually configured in Open Module Settings -> Dependencies

import bug

To run this project in intellij you will have to create a project and the modules from scratch and copy paste the code.

importing modules/projects from existing sources seems to break the Run/Debug configuration for Java9

command line

Note: you may need to delete previous compilation results.

compile

food.recipe

javac -d ./out/food.recipe ./food.recipe/src/module-info.java ./food.recipe/src/net/oostdam/food/recipe/CookBook.java ./food.recipe/src/net/oostdam/food/recipe/Recipe.java

food.app module

javac --module-path ./out -d ./out/food.console.app ./food.console-app/src/module-info.java ./food.console-app/src/net/oostdam/food/console/app/Main.java

food.simple

javac --module-path ./out -d ./out/food.simple ./food.simple/src/module-info.java ./food.simple/src/net/oostdam/food/simple/SimpleCookBook.java

food.complex

javac --module-path ./out -d ./out/food.complex ./food.complex/src/module-info.java ./food.complex/src/net/oostdam/food/complex/ComplexCookBook.java

javac

-d specifies the output directory, it must already exist.
--module-path specifies the modules directory, so it can resolve modules the application depends on.

run

java --module-path out --module food.console.app/net.oostdam.food.console.app.Main

java

--module-path specifies the modules directory, so it can resolve modules the application depends on.
-m/--module option specifies the main module, the value after the slash is the class name of the main class in the module.

jar

jar --create --file pkg/food.app.jar --main-class net.oostdam.food.console.app.Main -C out/food.console.app .
jar --create --file pkg/food.recipe.jar -C out/food.recipe .
jar --create --file pkg/food.simple.jar -C out/food.simple .
jar --create --file pkg/food.complex.jar -C out/food.complex .

java --module-path pkg --module food.console.app

jar --list --file pkg/food.app.jar

jar

-f/--file to specify the output file
-c/--create to create a new archive
--main-class, specify the entry point for executable jar
-C specify directory and files to include in archive
--list to show to contents of the jar