libvirt users - Oct 2012 - Connection using Java

Hi,

I am using java to connect to the xen, but my class is throwing a
exception. Does anyone know what is happening?

public class TestConnection {
    public static void main(String[] args) {
        Connect conn = null;
        try {
            conn = new Connect("xen+ssh://root at 192.XXX.XXX.XX/",
true);

libvir: RPC error : End of file while reading data: nc: invalid option --
'U'
nc -h for help: Input/output error
exception caught:org.libvirt.LibvirtException: End of file while reading
data: nc: invalid option -- 'U'
nc -h for help: Input/output error
level:VIR_ERR_ERROR
code:VIR_ERR_SYSTEM_ERROR
domain:VIR_FROM_RPC
hasConn:false
hasDom:false
hasNet:false
message:End of file while reading data: nc: invalid option -- 'U'
nc -h for help: Input/output error
str1:%s
str2:End of file while reading data: nc: invalid option -- 'U'
nc -h for help: Input/output error
str3:null
int1:-1
int2:-1

Thanks,
Felipe

-- 
*-- Felipe Oliveira Gutierrez*
*-- **lipe.82 at gmail.com* <lipe.82 at gmail.com>
*-- https://sites.google.com/site/lipe82/Home/diaadia*
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On 10/02/2012 09:10 AM, Felipe Oliveira Gutierrez wrote:
> Hi,
> 
> I am using java to connect to the xen, but my class is throwing a
> exception. Does anyone know what is happening?
> 
> public class TestConnection {
>     public static void main(String[] args) {
>         Connect conn = null;
>         try {
>             conn = new Connect("xen+ssh://root at
192.XXX.XXX.XX/", true);
> 
> libvir: RPC error : End of file while reading data: nc: invalid option --
> 'U'
What distro is running the machine at 192.XXX.XXX.XX, and what version
of nc is it using (remembering that Fedora and Debian nc come from
different heritages)?  What does 'nc --help' output on that machine?

It may be possible to connect by installing an updated nc on that
machine, and/or altering your xen+ssh://... URI to include a ?netcat=...
parameter that points to an alternate location on that server that
understands -U.

http://libvirt.org/remote.html#Remote_URI_parameters

-- 
Eric Blake   eblake at redhat.com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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