The error comes when JOCL calls clGetPlatformIDs(), and when I google failures in that function, I get results like http://stackoverflow.com/questions/20335579/error-clgetplatformids-1001-when-running-opencl-code-linux
, which seems to say that this means perhaps your OpenCL ICD is not installed correctly on your machine. Have you tested OpenCL itself outside of Matlab, by running our TestJoclVersion unit test perhaps, or some native binary that uses OpenCL?
Also, could you copy and paste the stack trace and error code here (from the code it looks like they should be present)? That may have some more information.