problem exporting .ase - generative design library

Hi, i was trying to work with this library, but i can't manage to export a proper .ase file. Illustrator never opens that, and if i print the color array i only get: [I@58bd518a

Here's is my code:

    import generativedesign.*;
    import processing.pdf.*;
    import java.util.Calendar;
    boolean savePDF = false;
    PImage img;
    color[] colors;
    String sortMode = null;

    void setup() {
      size(500, 500);
      colorMode(HSB, 360, 100, 100, 100);
      noStroke();
      noCursor();
      img = loadImage("pic2.jpg");
      img.resize(0, 500);
    }


    void draw() {
      if (savePDF) {
        beginRecord(PDF, timestamp()+".pdf");
        colorMode(HSB, 360, 100, 100, 100);
        noStroke();
      }

      int tileCount = width / 150;

      float rectSize = width / float(tileCount);
      int i = 0;
      colors = new color[tileCount*tileCount];
      for (int gridY=0; gridY<tileCount; gridY++) {
        for (int gridX=0; gridX<tileCount; gridX++) {
          int px = (int) (gridX * rectSize);
          int py = (int) (gridY * rectSize);
          colors[i] = img.get(px, py);
          i++;
        }
      }



      // sort colors

       sortMode = GenerativeDesign.HUE;
      if (sortMode != null) colors = GenerativeDesign.sortColors(this, colors, sortMode);
      // draw grid
      i = 0;
      for (int gridY=0; gridY<tileCount; gridY++) {
        for (int gridX=0; gridX<tileCount; gridX++) {
          fill(colors[i]);
          rect(gridX*rectSize, gridY*rectSize, rectSize, rectSize);
          i++;
        }
      }

      if (savePDF) {
        savePDF = false;
        endRecord();
      }
    }


    void keyReleased() {
      if (key == '4') sortMode = null;
      if (key == '5') sortMode = GenerativeDesign.HUE;
      if (key == '6') sortMode = GenerativeDesign.SATURATION;
      if (key == '7') sortMode = GenerativeDesign.BRIGHTNESS;
      if (key == '8') sortMode = GenerativeDesign.GRAYSCALE;
      if (key=='s' || key=='S') savePDF = true;
      if (key=='c') {
        GenerativeDesign.saveASE(this, colors, "ase/"+timestamp()+".ase");
        print("salvato");
        exit();
      }
    }


    // timestamp
    String timestamp() {
      Calendar now = Calendar.getInstance();
      return String.format("%1$ty%1$tm%1$td_%1$tH%1$tM%1$tS", now);
    }

Thanks