lancement de webcamstudio

Bonjour,


L'installation de webcamstudio_0.61 sous Mageia 3 a été couronnée d'un
encourageant message BUILD SUCCESSFUL et je tente de lancer le programme. Le
logo de l'application s'affiche pendant quelques secondes puis il disparaît.
Voici les messages qui me sont retournés :

$ cd dist
$ java -jar WebcamStudio.jar
Fontconfig warning: "/etc/fonts/conf.d/50-user.conf", line 9: reading
configurations from ~/.fonts.conf is deprecated.
Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError:
com/sun/jna/Library
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at webcamstudio.exporter.vloopback.VideoDevice.openDevice(VideoDevice.java:44)
at webcamstudio.exporter.vloopback.VideoDevice.loadInfo(VideoDevice.java:38)
at webcamstudio.exporter.vloopback.VideoDevice.<init>(VideoDevice.java:34)
at webcamstudio.exporter.vloopback.VideoDevice.getDevices(VideoDevice.java:145)
at
webcamstudio.exporter.vloopback.VideoDevice.getInputDevices(VideoDevice.java:104)
at webcamstudio.components.OutputPanel.<init>(OutputPanel.java:59)
at webcamstudio.WebcamStudio.<init>(WebcamStudio.java:56)
at webcamstudio.WebcamStudio$11.run(WebcamStudio.java:606)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:733)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at
java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:703)
at
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
Caused by: java.lang.ClassNotFoundException: com.sun.jna.Library
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
34 more

Ajouter l'option -d64 à ma commande ne change rien.
Ma version de java est java-1.7.0-openjdk (x86_64) et celle de ffmpeg est
ffmpeg-1.1.12 (x86_64) du dépôt tainted.

Que dois-je faire pour lancer webcamstudio ? Merci d'avance pour vos avis et
suggestions.

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