Who is the contact for libvirt Java binding ? In a late mail I said that the Java binding crashes upon live migrate when the dname=null . It does not crash if dname = source domain name even though works slow. The C code of libvirt / libvirt.c /virDomainMigrate () says in its header that : "If a hypervisor supports renaming domains during migration, * then you may set the dname parameter to the new name (otherwise * it keeps the same name). If this is not supported by the * hypervisor, dname must be NULL or else you will get an error." So in the kvm case dname = NULL works for the C binding but not for the JAVA binding as it should . Any idea ? thanks Zvi Dubitzky Virtualization and System Architecture Email:dubi@il.ibm.com IBM Haifa Research Laboratory Phone: +972-4-8296182 Haifa, 31905, ISRAEL