hello,
one month ago I posted the message below on java_linux.bugs - since this is quite
urgent for me, I*m pasting it here again -
would be great if someone of you could answer ----
THANX,
david
Full_Name: david gabriel
JDK_Version: 1.2
JDK_Arch: i386 (x86)
Linux_Dist: Suse
Linux_Dist_Ver: 6.0
Libc_Ver: libc.so.4 => libc.so.4.7.6
Ld_Ver: ld-linux.so.1 => ld-linux.so.1.9.9
Dyn_Java: no
Toolkit: Motif
Toolkit_Ver:
Bug_Example: http://
Submission from: ppp196-160.rz.hu-berlin.de (141.20.196.160)
when displaying animated gifs, an Object appears in the Threadlist named "Image
Animator 0".
when opening several anim. gifs, several "Image Animator 0" Threads appear.
these threads don.t disappear after the following code:
public class ImageUtil {
public static int ratio = 3;
public static MediaTracker mt=null;
public static Toolkit tk = null;
public static Dimension getSize(String img_path, Component c) {
if (tk==null) tk = c.getToolkit();
Image i = tk.getImage(img_path);
if (mt == null) mt = new MediaTracker(c);
mt.addImage(i,0);
try{mt.waitForID(0);}catch(InterruptedException ex){System.err.println(ex);}
Image offscreen = c.createImage(1,1);
Graphics g = offscreen.getGraphics();
g.drawImage(i,0,0,c);
Dimension d = new Dimension(i.getWidth(c),i.getHeight(c));
mt.removeImage(i);
offscreen = null;
i = null;
g.dispose();
//System.out.println(i.getHeight(c)+" "+i.getWidth(c));
return d;
}
after some time, athreadlist looks like:
Thread[Image Animator 0,3,main]
Thread[Image Animator 0,3,main]
Thread[Image Animator 0,3,main]
Thread[Image Animator 0,3,main]
Thread[Image Animator 0,3,main]
Thread[Image Animator 0,3,main]
Thread[Image Animator 0,3,main]
Thread[Image Animator 0,3,main]
calling a stop() function on the corresponding threads results in a crash
of the whole application saying:
KILLING: Thread[Image Animator 0,3,main]
SIGSEGV 11* segmentation violation
stackpointer=0xbe9ff3c0
all other (legal) ways to kill the Thread have no effect -
The corresponding ImageFetcher Thread (for jpegs etc) disappears after the Image is
no longer
used...
Hmmmmmm....
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