It uses only Java SE. It implements the Selenium API and wraps the renderer and JS engine that's built in to Java (WebKit). Granted, Java itself is built on nat

It uses only Java SE. It implements the Selenium API and wraps the renderer and JS engine that's built in to Java (WebKit). Granted, Java itself is built on native code and native WebKit renderer (whereas, the networking code, graphics, cookie management, headers, etc. are Java). Sorry to be misleading.