Jan,
Maybe your Eclipse somehow affect property setting. Following code
works on my Mac (4.0.8 build):
import org.virtualbox_4_0.*;
public class Sample
{
public static void main(String[] args)
{
VirtualBoxManager mgr =
VirtualBoxManager.createInstance("/Applications/VirtualBox.app/Contents/MacOS");
IVirtualBox vbox = mgr.getVBox();
System.out.println("vbox "+vbox.getVersion());
mgr.cleanup();
}
}
And variant with setProperty() works for me too, but I use standalone
javac/java. Try that to sort out
influence of your IDE.
Nikolay.
On 5/30/11 5:17 PM, Jan Dillmann wrote:
Hello list,
for my current university project, I need to access VirtualBox instances using
the vboxjxpcom.jar .
However, I can't even get the minimal sample running. The following code
public static void main(String[] args) {
System.setProperty("vbox.home",
"/Applications/VirtualBox.app/Contents/MacOS");
VirtualBoxManager mgr = VirtualBoxManager.createInstance(null);
IVirtualBox vbox = mgr.getVBox();
System.out.println("VirtualBox version: " + vbox.getVersion());
mgr.cleanup();
}
crashes at "VirtualBoxManager.createInstance" with the following exception:
Exception in thread "main" java.lang.NullPointerException
at org.mozilla.xpcom.Mozilla.initialize(Mozilla.java:632)
at
org.virtualbox_4_0.VirtualBoxManager.createInstance(VirtualBoxManager.java:104)
at Main.main(Main.java:15)
I'm developing with Eclipse Helios and Java 1.6 on a Mac OS X 10.6 using the
latest VirtualBox and jar (4.0.8).
Does anyone know how I can fix this? The jar is in the classpath and the
vbox.home-Property is set.
Thanks in advance,
Jan
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