1.2.0+1.14 is a release file of the Minecraft mod Cotton Scripting API, made for Minecraft 1.14.1, 1.14. It was published on May 12, 2019 and is 0.2 MB in size. For the full description, screenshots and every other version, visit the Cotton Scripting API mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.