[libvirt] RFC: libvirt java bindings based on JNA

Bryan Kearney bkearney at redhat.com
Thu Jul 30 01:30:20 UTC 2009


Can you try the new release? It is cleaned up.. and should be easier to 
consume. Let me know if there are issues.

-- bk

Thomas Treutner wrote:
> On Wednesday 29 July 2009 13:49:45 Bryan Kearney wrote:
>> Thomas Treutner wrote:
>>> On Tuesday 28 July 2009 14:42:42 Bryan Kearney wrote:
>>>> Thomas Treutner wrote:
>>>>> When using it with my tiny test application (which works fine with the
>>>>> JNI version), it first complains that /etc/pki/CA/cacert.pem can not be
>>>>> found. As I installed libvirt from source, it's in /usr/local/...,
>>>>> working fine with JNI. So I did a symlink workaround for now.
>>>> Where did you see this complaint? 
> 
> Hm, I really cannot reproduce it anymore. Most probably it was caused by my 
> libvirt-mixup.
> 
>>>> Also.. what is your LD_LIBRARY_PATH 
>>>> set to when running this.
> 
> # cat /etc/ld.so.conf.d/*                                                    
> /usr/local/lib
> /usr/local/lib
> /usr/lib/kde4/lib
> # libc default configuration
> /usr/local/lib
> # Multiarch support
> /lib/x86_64-linux-gnu
> /usr/lib/x86_64-linux-gnu
> 
> 
>>> The file not found was cacert.pem, not the *.so - so I don't think
>>> LD_LIBRARY_PATH matters here?
>>>
>>> Anyways, the problem about
>>>
>>> 	conn = new Connect("xen://node02", false);
>>>
>>> was my fault - I forgot wiping an old apt-installed version of libvirt
>>> before compiling libvirt-java-jna. It works now, but there seems to be a
>>> massive typo somewhere; when I start my small application, it can't
>>> find "liblibvirt.so" (sic!) and exits.
>> Really.. can you send me the output?
> 
> Exception in thread "main" java.lang.UnsatisfiedLinkError: Unable to load 
> library 'libvirt': liblibvirt.so: cannot open shared object file: No such 
> file or directory
> 	at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:145)
> 	at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:188)
> 	at com.sun.jna.Library$Handler.<init>(Library.java:123)
> 	at com.sun.jna.Native.loadLibrary(Native.java:255)
> 	at com.sun.jna.Native.loadLibrary(Native.java:241)
> 	at org.libvirt.jna.Libvirt.<clinit>(Unknown Source)
> 	at org.libvirt.Connect.<clinit>(Unknown Source)
> 	at MyTest.main(MyTest.java:13)
> 
> 
> MyTest.java:13:           conn = new Connect("xen://node01/", false);
> 
> 
>> What version of jna do you have? 
> 
> # cat META-INF/MANIFEST.MF                                             
> Manifest-Version: 1.0
> Ant-Version: Apache Ant 1.7.0
> Created-By: 1.5.0_16-133 (Apple Inc.)
> Main-Class: com.sun.jna.Native
> 
> Name: com/sun/jna/
> Implementation-Title: com.sun.jna
> Implementation-Vendor: JNA Development Team
> Implementation-Version: 3.0.9 b0
> Specification-Title: Java Native Access (JNA)
> Specification-Vendor: JNA Development Team
> Specification-Version: 3
> 
> It ist part of Eclipse, now downloaded 3.2.1 from jna.dev.java.net, with same 
> results:
> 
> Exception in thread "main" java.lang.UnsatisfiedLinkError: Unable to load 
> library 'libvirt': liblibvirt.so: cannot open shared object file: No such 
> file or directory
> 	at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:160)
> 	at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:228)
> 	at com.sun.jna.Library$Handler.<init>(Library.java:140)
> 	at com.sun.jna.Native.loadLibrary(Native.java:372)
> 	at com.sun.jna.Native.loadLibrary(Native.java:357)
> 	at org.libvirt.jna.Libvirt.<clinit>(Unknown Source)
> 	at org.libvirt.Connect.<clinit>(Unknown Source)
> 	at MyTest.main(MyTest.java:13)
> 
> 
> 
> hth&tia,
> thomas
> 
> 
> 
> 




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