Hi java-api-team (-: could you please let org.libvirt.Error implements the serializable interface ? Exceptions (and the content like org.libvirt.Error) should be serializable. I got an exception on my host system connected via RMI to the client-system running libvirt-java (libvirt-java, cvs-snapshot 2008-08-18) like this: ------------------------------------------------ ... cause:java.rmi.UnmarshalException: Error unmarshaling return; nested exception is: java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: org.libvirt.Error package org.libvirt; ------------------------------------------------ public class Error { VIR_FROM_NONE, /** * Error at Xen hypervisor layer */ VIR_FROM_XEN, ------------------------------------------------ thank you very much regards Danny ------------------------------------------------------------------- DT Netsolution GmbH - Taläckerstr. 30 - D-70437 Stuttgart Geschäftsführer: Daniel Schwager, Stefan Hörz - HRB Stuttgart 19870 Tel: +49-711-849910-32, Fax: -932 - Mailto:daniel.schwager@dtnet.de