Vincent ES 1.x is a 3D rendering library based on the OpenGL (R) ES 1.1 API specification (Common Lite) for embedded devices. ATTENTION: A new fixed pipeline implementation is being work on here: https://sourceforge.net/projects/oglsc
JNC means java native compiler. It take the java byte code file as input and translate it to C or ASM format then compile to native format such as elf or pe file. So your java program can run without JVM.