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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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 {...}

Regards,
Frederic

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