gistfile1.java

byte[] obtainByteData(String filename) throws IOException {
    InputStream inputStream = getClass().getResourceAsStream(filename);
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream(1024);
    byte[] bytes = new byte[512];
 
    int readBytes;
    while ((readBytes = inputStream.read(bytes)) > 0) {
        outputStream.write(bytes, 0, readBytes);
    }
 
    byte[] byteData = outputStream.toByteArray();
 
    inputStream.close();
    outputStream.close();
 
    return byteData;
}

gistfile2.scala

def obtainByteData(resource: filename): Array[Byte] = {
  val is = getClass.getResourceAsStream(filename)
  val byteData = continually(is.read).takeWhile(-1 !=).map(_.toByte).toArray
  is.close()
  byteData
}