glMultiDrawElementsBaseVertex which was added in OpenGL 3.2 specification is missing in the API.
Make sure that the implementation supports indices provided in a buffer object bound to ELEMENT_ARRAY_BUFFER (see Bug ID 764).
Code snippet .. how to use PointerBuffer in this case:
IntBuffer indices = Buffers.newDirectIntBuffer(count);
final PointerBuffer indicesP = PointerBuffer.allocateDirect(1);
-> glMultiDrawElementsBaseVertex(int mode, IntBuffer count, int type, PointerBuffer indices, int primcount, IntBuffer basevertex)