Jython - Convert File to Byte Array

gistfile1.py

from java.lang import Byte
from java.io import FileInputStream
from java.io import File
import jarray

def getByteArray(self,fileUrl):
  file = File(fileUrl);
  inputStream = FileInputStream(file)
  length = file.length()
  bytes = jarray.zeros(length, 'b')
  #Read in the bytes
  offset = 0
  numRead = 0
  while offset<length:
      if numRead>= 0:
          print numRead
          numRead=inputStream.read(bytes, offset, length-offset)
          offset = offset + numRead
  return bytes