MPS Libraries for Java 8

MPS uses Java 11 since version 2019.2 and all the JARs are compiled with Java 11 as the target, including libraries that can be used by the generated code, such as collections and closures runtimes.

This makes it impossible to run the generated code under Java 8 VM anymore.

The solution is to build these libraries to be Java 8-compatible and this is what this project does.

Checking out

git clone [email protected]:mbeddr/mps-libs-java8.git --recurse-submodules --shallow-submodules

Or if you already cloned it without submodules:

git submodule update --init --depth 1

The shallow/depth parameters tell Git to skip cloning the decades of MPS history and only get the one required commit.

Building

Build using Maven (mvn package or mvn install or mvn deploy depending on your needs).

For Maintainers: Updating to a New Version of MPS

VVVV below is the new MPS version.

1. Update Maven version:

   mvn versions:set -DnewVersion=VVVV

2. Update the MPS submodule to the new version:

   cd MPS
   git fetch --depth 1 origin tag VVVV
   git checkout VVVV