java error on ubuntu

singmj

my host:

hardware:pcduinio (as Raspberry B)

ubuntu 12.04 arm-jdk 7 oracle-java

when Run processing example: Libraries->video->GettingStartedCapture.pde

//******************
import processing.video.*;

Capture cam;

void setup() {
  size(640, 480);

  String[] cameras = Capture.list();

//error message:
//alert message:
//-no class def found error:could not
  initialize class com.sun.jna.Native

but other processing demo is OK (no include video libraries)

how to fix it? thanks.

gohai

Which version of Processing are you using? Are you using the Video library from the Contribution Manager?