2010/9/2 Ravi Pawar <ravifc@xxxxxxxxx>: > please check the java file attached they throws the exception in case of > passing. > please let me know if i am missing something. > Can you explain in more detail what one should do to reproduce the problem you seem to see with the attached code? Also you didn't mention which versions of libvirt and libvirt-java you're using. When I run you example code (with a guest name that exists in my setup and libvirt and libvirt-java form current git head) I don't see any exceptions. Even when I add e.printStackTrace() to the catch block of TestMultiThreadingLibvirtWithError I don't see exceptions. $ java -classpath ./target/libvirt-0.4.6.jar:./ravi:/usr/share/java/jna.jar Test start class 0 start class 1 start class 2 start class 3 start class 4 start class 5 start class 6 start class 7 start class 8 start class 9 So this works for me. Matthias