Re: GUI doesn't appear in rare cases

[Ralph <titojermaine@yahoo.com>]

I thought it might have been related to the video mode as well (but
it's really hard to determine if it's still running, or seizes at some
point after logging the initialization events and actually getting the
GUI up).  The video card in the broken machine is the same as the card
in another machine that works fine.  Also tried matching the video
modes, but no luck there either.  Unfortunately, I don't have much
access to the machine anymore to do much further testing, so I guess
it'll stay the way it is for now.  Thank you everyone for the
suggestions.

--- Ed Jenkins <digitalman2000hm@hotmail.com> wrote:
> Two possibilities that come to mind are differences in video cards or
> 
> differences in pixel depth settings, but this may not be the case in
> your 
> situation.  Since JDK 1.2 or 1.3, I think 16-colour mode is no longer
> 
> supported, but hopefully you are not trying to use that anyway.
> 
> Also look for diferences in Windows service packs, especially where
> DirectX 
> or video drivers are concerned.  Some Java apps are not compatable
> with 
> certain versions of DirectX.  The Bug Parade at java.sun.com lists
> some 
> workarounds for this.
> 
> Ed
> 
> ---
> 
> From: Ralph <titojermaine@yahoo.com>
> To: ajug-members@ajug.org
> Subject: GUI doesn't appear in rare cases
> Date: Tue, 9 Jul 2002 13:39:12 -0700 (PDT)
> 
> We have setup numerous machines with the J2SE 1.4 JRE and not had any
> problems, except for a few machines.  All the machines are identical
> and setup the same, but they are setup by hand, the hard drives are
> not
> copied.  They're all standard Compaq EVO machines (which is pretty
> much
> a desktop) running Win2k Server.  In a few rare cases, whenever any
> class or jar is executed, the application launcher (in our case, it's
> a
> jar using javaw) starts, but nothing appears and the application
> launcher does not exit.  We've attempted to run the application from
> java.exe using the -jar option.  No exceptions are displayed, and in
> fact, the logging messages are displayed, but the GUI will not show.
> There is no logic that would cause the show method not be called on
> any
> of the multiple windows that should appear.  The same application
> runs
> fine on most machines, just in a few cases it doesn't.  If you
> reinstall the JRE it does not help.  We've checked the registry keys,
> and everything appears to be identical to the other machines.  If we
> completely reinstall the software (from OS up), it seems to correct
> the
> problem.  Has anyone else had this issue, and if so, is there any
> other
> way of resolving this issue?
> 
> 
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