Freezing netbeans platform apps

Hi,

I am using serveral netbeans platform application in a big windows network 
and I run more and more often into problems which results in freezing of 
the gui a short time after the start of the application (App and GUI does 
not respond and GUI is not redrawn. After minimizing and maximizing the 
unresponding App it shows a black window. Happens every time within less 
than 1 minute after startup. Netbeans 8.1, JDK 8, 32 and also 64bit)

The freeze of the gui can have several reasons. 

One reason is a conflict with a proxy server which results in opening of a 
modal windows which is not visible behind the main window. This problem 
can be solved by adding an extended proxy module. A further problem with 
proxy servers originated in a JDK bug ist described here:

https://netbeans.org/bugzilla/show_bug.cgi?id=248308

with a solution which works for my own platform apps here:

http://plugins.netbeans.org/plugin/55258/proxyselector-v2[1]

An other reason which results in freezing of the gui is a full cache drive. 
This can be solved by changing the the default cache dir in the nebeans 
platform app config file.

Now I have further problems which I can not solve and I have no idea how 
to debug it. The applications gui freezes if the application is started at 
specific domain unsers. It does not freeze if it is started as an local user. 
The application prints no debug messages even if I set the debug level  to 
the finest one.

Any ideas how to debug this problem?

Maybe the problem has its origin that access to some resources are 
restricted. Maybe to the windows registry?

Any ideas?

best regards
Oliver 


http://www.motion-science.org
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[1] http://plugins.netbeans.org/plugin/55258/proxyselector-v2