[Bluej-discuss] Slow Directory Navigation

[Bruce Quig]

Hi Chris,

Can you advise on which Java version you are using?

There have been a number of Java bugs involving JFileChooser dialogs  
that are very slow under certain circumstances. One bug involved  
large zip files in the directory being browsed, others when network  
drives are present, or the directories are large.

The large zip file bug is listed as fixed for Java 7, the others are  
still open.

http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6578753
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=5050516
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6593680

jEdit is not probably the best comparator as it doesn't use Swing  
JFileChooser dialogs (as far as I know), they created their own from  
scratch.

Do the folders in question contains large zip files, large numbers of  
files or network drive links?

Is anyone else getting the same problems? If you have more than one  
Java JDK version on your system it would be interesting to see if the  
behaviour is present on more than one version.

Bruce




On 31/10/2007, at 10:24 AM, Chris Share wrote:

> Hi,
>
> For some reason, directory navigation in BlueJ has suddenly become  
> very slow. If I try to open a file, there's a delay of roughly 10  
> seconds before the file dialog opens. The delay is also happening  
> when I navigate to a new directory.
>
> It seems that this problem is only happening in BlueJ. It's  
> definitely not happeing in any other Java apps like jEdit.
>
> I'm running BlueJ 2.2.0 on Windows XP.
>
> Any idea what's going on?
>
> Cheers,
>
> Chris
>
>
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Dr. Bruce Quig

Research Programmer/Analyst
School of Engineering and Information Technology
Deakin University, 221 Burwood Highway, Burwood, Victoria 3125 Australia
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Email: bquig at deakin.edu.au
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