Example program to run Modular JAR with Java 8's JAR.

This project aims to confirm accesiblity of each modules: unnamed, automatic and explicit modules by using quick-start's example program.

• unnamed module: the ordinary JAR compiled by java 8 and specified by --class-path
• automatic module: the ordinary JAR compiled by java 8 and specified by --module-path
• explicit module: the modular JAR

Requirements

• Linux
• Download Java 9 EA build 181+ and set JAVA_9_HOME to /path/java9
• Set JAVA_8_HOME to /path/java8

Can explicit modules access automatic modules?

Yes. You can confirm by bash ./ModularJAR_calls_OrdinaryJAR.sh

Can automatic modules access explicit modules?

Yes. You can confirm by bash ./OrdinaryJAR_calls_ModularJAR.sh

Note: The modules not required by other modules do not add to module-graphs. So, if you use the modules which are required by only automatic modules, use --add-modules to add to root modules.

Can we run unnamed module with explicit modules?

Yes. You can run with explicit module by using classpath as ./OrdinaryJAR_calls_ModularJAR.sh

Acknowledgment

• Alan Bateman
  • http://mail.openjdk.java.net/pipermail/jigsaw-dev/2017-September/013159.html
  • http://mail.openjdk.java.net/pipermail/jigsaw-dev/2017-September/013161.html