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Re: [libvirt] Release 0.4.1 of libvirt-java

I posted a patched jar file at:


The only change was making the struct into a union per your comments. Can you let me now if this solves you NPE? It passes my tests.

-- bk

On 01/27/2010 08:40 PM, Bryan Kearney wrote:
Alright.. let me give it a try. I was not seeing the NPE in the tests I

-- bk

On 01/25/2010 01:15 PM, frederic dangtran orange-ftgroup com wrote:

On Jan 18, 2010, at 3:44 PM, Bryan Kearney wrote:

I have just released 0.4.1 of libvirt java. There are 2 main items in
this release:

- Better null checking in for Scheduled Parameters which should fix
the issues reported on the list.
- Error Callbacks to provide better handling of errors encountered by
libvirt (virConnSetErrorFunc and virSetErrorFunc).

You can access the latest version via the following means:

Source Code: http://www.libvirt.org/git/?p=libvirt-java.git;a=summary
Bundled Source (tarball and SRPM): http://libvirt.org/sources/java/
Maven: http://libvirt.org/maven2/
RPMS are making their way through F-11 and F12 build systems

Thank you!

-- bk

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libvir-list redhat com <mailto:libvir-list redhat com>

Thanks for the update, Bryan, but the problem still persists. In my
setup (Xen hosts): Domain.getSchedulerParameters() still raises a NPE.

In libvirt.h, _virSchedParameter is defined as follows using a union for
the value:

struct _virSchedParameter {
char field[VIR_DOMAIN_SCHED_FIELD_LENGTH]; /* parameter name */
int type; /* parameter type */
union {
int i; /* data for integer case */
unsigned int ui; /* data for unsigned integer case */
long long int l; /* data for long long integer case */
unsigned long long int ul; /* data for unsigned long long integer case */
double d; /* data for double case */
char b; /* data for char case */
} value; /* parameter value */

I believe the Java mapping of virSchedParameterValue should be a Union
instead of a Structure:
public class virSchedParameterValue extends Union {...}


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