Thanks! I tried virsh -c xen:///system list --all and I got: Domain 0 running test idle I'm able to successfully ping the test VM also. How can I get the list of active VMs now? <div class="gmail_quote">On Tue, Nov 15, 2011 at 11:00 AM, Matthias Bolte <<a href="mailto:matthias.bolte@googlemail.com" target="_blank">matthias.bolte@googlemail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> 2011/11/15 PREETHI RAMESH <<a href="mailto:iampreethiramesh@gmail.com" target="_blank">iampreethiramesh@gmail.com</a>>: > Hey all, > I've been trying to make listDomains() work on Xen but it simply returns an > array of null values. Also, while displaying the length of the array > returned by listDomains(). Upon using the same function in KVM, I'm able to > retrieve the complete array of active machines. I'm positive that active Xen > machines are running(cross checked it with xm list). > > I've been posting this for quite sometime now but haven't received any reply > which could debug my code. I'd really appreciate it if someone could help > me. Your problem is probably not related to your code or the Java bindings at all. Did you check whether 'virsh list' shows active domains for Xen? I guess your problem is that libvirt doesn't recognize your active Xen domains form some reason. Therefore, 'virsh list' and your own code don't show active domains. -- Matthias Bolte <a href="http://photron.blogspot.com" target="_blank">http://photron.blogspot.com</a> </blockquote></div>