VLCJ未显示视频播放器

Question

下午好，运行类将VLCJ JAR文件放入类路径（VLCJ 3.11）时遇到一些问题。它在运行程序时给我以下错误代码：

产生该错误的行是下一行（下面是错误代码）：

mediaPlayerComponent = new EmbeddedMediaPlayerComponent() {
            private static final long serialVersionUID = 1L;
            @Override
            protected FullScreenStrategy onGetFullScreenStrategy() {
                return new Win32FullScreenStrategy(VideoPlayer.this);
            }
        };

---

Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: com/sun/jna/PointerType
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(Unknown Source)
    at java.security.SecureClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.access$100(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
    at java.lang.Class.getDeclaredMethod(Unknown Source)
    at java.awt.Component.isCoalesceEventsOverriden(Unknown Source)
    at java.awt.Component.isCoalesceEventsOverriden(Unknown Source)
    at java.awt.Component.access$500(Unknown Source)
    at java.awt.Component$3.run(Unknown Source)
    at java.awt.Component$3.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.awt.Component.checkCoalescing(Unknown Source)
    at java.awt.Component.<init>(Unknown Source)
    at java.awt.Container.<init>(Unknown Source)
    at java.awt.Panel.<init>(Unknown Source)
    at java.awt.Panel.<init>(Unknown Source)
    at uk.co.caprica.vlcj.component.EmbeddedMediaPlayerComponent.<init>(EmbeddedMediaPlayerComponent.java:215)
    at ud.prog3.pr01.VideoPlayer$2.<init>(VideoPlayer.java:75)
    at ud.prog3.pr01.VideoPlayer.<init>(VideoPlayer.java:75)
    at ud.prog3.pr01.VideoPlayer$11.run(VideoPlayer.java:283)
    at java.awt.event.InvocationEvent.dispatch(Unknown Source)
    at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
    at java.awt.EventQueue.access$500(Unknown Source)
    at java.awt.EventQueue$3.run(Unknown Source)
    at java.awt.EventQueue$3.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: com.sun.jna.PointerType
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    ... 

我如何解决此问题才能正常运行该程序？预先感谢。