[GridSim-users] Visualizator problem

[Dalibor K. <xk...@fi...>]

Hi,

I've been trying to run the visualization but I am still getting an 
Exception:

Exception in thread "main" java.lang.ExceptionInInitializerError
        at gridsim.GridSim.startGridSimulation(Unknown Source)
        at traceexample.Main.main(Main.java:124)
Caused by: java.lang.NullPointerException
        at java.util.Properties$LineReader.readLine(Properties.java:418)
        at java.util.Properties.load0(Properties.java:337)
        at java.util.Properties.load(Properties.java:325)
        at 
gridsim.parallel.gui.GUISettings.loadDefaultProperties(Unknown Source)
        at gridsim.parallel.gui.GUISettings.<init>(Unknown Source)
        at gridsim.parallel.gui.GUISettings.getInstance(Unknown Source)
        at gridsim.parallel.gui.AbstractVisualizer.<clinit>(Unknown Source)
        ... 2 more
Java Result: 1

Clearly the GUISettings class cannot load the "gui.properties" file 
properly.
I am not quite sure where to put this gui.properties file. Since it is 
expected to be at: DEF_PATH = "gridsim/parallel/gui/gui.properties"
I tried to create such directory in my project folder, but it did not 
work. Weird thing is that if I tried to open it via FileReader on my 
own, everything went just fine, so I suppose wrong path was not the problem.
I am using gridsim as a .jar library, which I include into my (Netbeans) 
project.

The visualization is invoked through GridSim.startGridSimulation(true); 
command and by using AggressiveBackfill alloc policy.

I think that my problem will be solved by moving the gui.properties file 
somewhere else - please tell me where?
Or the best solution would be - show me a simple code that runs the 
visualization :-)

Thanks,

Dalibor