Name: joT67522 Date: 01/06/98


Received the following error after calling
startProduction() on ImageProducer returned from
URL.getContent():

java.lang.UnsatisfiedLinkError: parseImage
        at sun.awt.image.GifImageDecoder.readImage(GifImageDecoder.java:552)
        at sun.awt.image.GifImageDecoder.produceImage(GifImageDecoder.java:223)
        at sun.awt.image.InputStreamImageSource.doFetch(InputStreamImageSource.j
ava:265)
        at sun.awt.image.ImageFetcher.fetchloop(ImageFetcher.java:151)
        at sun.awt.image.ImageFetcher.run(ImageFetcher.java:127)

I noted that parseImage is a native method, so I
assume the problem is related to this.



$ cat Test3.java
import java.awt.*;
import java.awt.image.*;

public class Test3 implements ImageConsumer {
  public boolean complete = false;

  int xdim, ydim;
  int pix[][];

  public void setProperties(java.util.Hashtable param) {
  }
  public void setColorModel(ColorModel param) {
  }
  public void setHints(int param) {
  }
  public void imageComplete(int param) {
    complete = true;
  }
  public void setDimensions(int x, int y) {
    xdim = x;
    ydim = y;
    pix = new int[x][y];
  }
  public void setPixels(int x1, int y1, int w, int h,
                        ColorModel model, byte pixels[], int off, int scansize)
{
    int x, y, x2, y2, sx, sy;
    // we're ignoring the ColorModel, mostly for speed reasons.
    x2 = x1+w;
    y2 = y1+h;
    sy = off;
    for(y=y1; y<y2; y++) {
      sx = sy;
      for(x=x1; x<x2; x++)
        pix[x][y] = pixels[sx++];
      sy += scansize;
    }
  }
  public void setPixels(int x1, int y1, int w, int h,
                        ColorModel model, int pixels[], int off, int scansize) {
    int x, y, x2, y2, sx, sy;
    // we're ignoring the ColorModel, mostly for speed reasons.
    x2 = x1+w;
    y2 = y1+h;
    sy = off;
    for(y=y1; y<y2; y++) {
      sx = sy;
      for(x=x1; x<x2; x++)
        pix[x][y] = pixels[sx++];
      sy += scansize;
    }
  }

  public static void main (String argsv[]) {
      Test3 tst = new Test3();

      try {
         java.net.URL address = new java.net.URL ("http://devweb2/results/dev" +
"/images" + "/small-up.gif");

       System.out.println ("Content: " + address.getContent().toString());
       System.out.println ("ImageProducer? = " + (address.getContent()
instanceof ImageProducer));

         if (address.getContent() instanceof ImageProducer) {
            boolean complete = false;
            int t;

            java.awt.image.ImageProducer imgProd =
(java.awt.image.ImageProducer) address.getContent();

          System.out.println ("Starting image production");

            imgProd.startProduction(tst);

          System.out.println ("Started!");

            t = 1000;
            while(t>0 && ! tst.complete) {
               try {
                  Thread.currentThread().sleep(100);
               } catch (Throwable ex) {
               }
               t -= 100;
            }

          if (tst.complete)
            System.out.println ("Image Complete!");
         }
      } catch (Exception e) {
         System.out.println (e.toString());
      }

  }

}






$ javac Test3.java
$ java Test3
Content: sun.awt.image.URLImageSource@1dce0936
ImageProducer? = true
Starting image production
Started!
java.lang.UnsatisfiedLinkError: parseImage
        at sun.awt.image.GifImageDecoder.readImage(GifImageDecoder.java:552)
        at sun.awt.image.GifImageDecoder.produceImage(GifImageDecoder.java:223)
        at
sun.awt.image.InputStreamImageSource.doFetch(InputStreamImageSource.java:265)
        at sun.awt.image.ImageFetcher.fetchloop(ImageFetcher.java:151)
        at sun.awt.image.ImageFetcher.run(ImageFetcher.java:127)
Image Complete!
$ echo $CLASSPATH
/data/users/johnson:/opt/bin/jdk1.1.4/lib:/opt/bin/jdk1.1.4/lib/classes.zip:/dat
a/users/johnson/../brownp/java/lib/vbj30.jar:/data/u
sers/johnson/../brownp/java/lib:/data/users/johnson/../brownp/java/projects/lib:
/opt/bin/jdbc/lib/classes111.zip
$ uname -a
SunOS devweb 5.5.1 Generic_103640-12 sun4u sparc SUNW,Ultra-2
$

(Review ID: 22397)
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