JNLua 1.0 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac application is a product of Anton Gustafsson. We recommend checking the downloaded files with any free antivirus. The program belongs to Developer Tools.
From the developer:
NLua (Java Native Lua) integrates the Lua Scripting Language into Java. The integration is based on the original implementation of Lua which is written in ANSI C. The Lua C code is integrated into Java using the Java Native API (JNI).
JNLua provides the full functionality of Lua C API including large parts of the Lua Auxiliary Library.
You may want to check out more software for Mac, such as JBuddy Bot Builder, Objective Basic or Pleinpot, which might be similar to JNLua.