java.lang.NoClassDefFoundError: Could not initialize class com.sun.jna.Native
	at org.netbeans.modules.masterfs.watcher.linux.LinuxNotifier.<init>(LinuxNotifier.java:103)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
	at java.lang.Class.newInstance0(Class.java:372)
	at java.lang.Class.newInstance(Class.java:325)
	at org.openide.util.lookup.implspi.SharedClassObjectBridge.newInstance(SharedClassObjectBridge.java:64)
[catch] at org.openide.util.lookup.MetaInfServicesLookup$P.getInstance(MetaInfServicesLookup.java:519)
	at org.netbeans.modules.masterfs.watcher.Watcher.getNotifierForPlatform(Watcher.java:414)
	at org.netbeans.modules.masterfs.watcher.Watcher.<init>(Watcher.java:85)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
	at java.lang.Class.newInstance0(Class.java:372)
	at java.lang.Class.newInstance(Class.java:325)
	at org.openide.util.lookup.implspi.SharedClassObjectBridge.newInstance(SharedClassObjectBridge.java:64)
	at org.openide.util.lookup.MetaInfServicesLookup$P.getInstance(MetaInfServicesLookup.java:519)
	at org.openide.util.lookup.AbstractLookup$R.allInstances(AbstractLookup.java:1041)
	at org.openide.util.lookup.AbstractLookup$R.allInstances(AbstractLookup.java:1021)
	at org.openide.util.lookup.ProxyLookup$LazyCollection.computeSingleResult(ProxyLookup.java:1241)
	at org.openide.util.lookup.ProxyLookup$LazyCollection.computeDelegate(ProxyLookup.java:1083)
	at org.openide.util.lookup.ProxyLookup$LazyCollection.access$900(ProxyLookup.java:1013)
	at org.openide.util.lookup.ProxyLookup$LazyCollection$1.hasNext(ProxyLookup.java:1207)
	at org.netbeans.modules.masterfs.filebasedfs.FileBasedFileSystem$StatusImpl.resultChanged(FileBasedFileSystem.java:305)
	at org.netbeans.modules.masterfs.filebasedfs.FileBasedFileSystem$StatusImpl.<init>(FileBasedFileSystem.java:271)
	at org.netbeans.modules.masterfs.filebasedfs.FileBasedFileSystem.<init>(FileBasedFileSystem.java:81)
	at org.netbeans.modules.masterfs.filebasedfs.FileBasedFileSystem.<clinit>(FileBasedFileSystem.java:79)
	at org.netbeans.modules.masterfs.filebasedfs.FileBasedURLMapper.getFileObjects(FileBasedURLMapper.java:138)
	at org.netbeans.modules.masterfs.MasterURLMapper.getFileObjects(MasterURLMapper.java:65)
	at org.openide.filesystems.URLMapper.findFileObject(URLMapper.java:212)
	at org.openide.filesystems.FileUtil.toFileObject(FileUtil.java:1069)
	at org.netbeans.core.startup.layers.NbinstURLMapper.getFileObjects(NbinstURLMapper.java:88)
	at org.openide.filesystems.URLMapper.findFileObject(URLMapper.java:212)
	at org.netbeans.modules.java.j2seplatform.libraries.J2SELibraryTypeProvider.addLibraryIntoBuild(J2SELibraryTypeProvider.java:207)
	at org.netbeans.modules.java.j2seplatform.libraries.J2SELibraryTypeProvider.access$000(J2SELibraryTypeProvider.java:79)
	at org.netbeans.modules.java.j2seplatform.libraries.J2SELibraryTypeProvider$1.run(J2SELibraryTypeProvider.java:135)
	at org.openide.util.Mutex.postRequest(Mutex.java:1258)
	at org.openide.util.Mutex.postWriteRequest(Mutex.java:587)
	at org.netbeans.modules.java.j2seplatform.libraries.J2SELibraryTypeProvider.libraryCreated(J2SELibraryTypeProvider.java:129)
	at org.netbeans.modules.project.libraries.LibrariesStorage.loadFromStorage(LibrariesStorage.java:176)
	at org.netbeans.modules.project.libraries.LibrariesStorage.initStorage(LibrariesStorage.java:222)
	at org.netbeans.modules.project.libraries.LibrariesStorage.getLibraries(LibrariesStorage.java:292)
	at org.netbeans.modules.project.libraries.LibrariesModule.initProviders(LibrariesModule.java:66)
	at org.netbeans.modules.project.libraries.LibrariesModule.restored(LibrariesModule.java:61)
	at org.netbeans.core.startup.NbInstaller.loadCode(NbInstaller.java:441)
	at org.netbeans.core.startup.NbInstaller.load(NbInstaller.java:381)
	at org.netbeans.ModuleManager.enable(ModuleManager.java:1163)
	at org.netbeans.ModuleManager.enable(ModuleManager.java:986)
	at org.netbeans.core.startup.ModuleList.installNew(ModuleList.java:340)
	at org.netbeans.core.startup.ModuleList.trigger(ModuleList.java:276)
	at org.netbeans.core.startup.ModuleSystem.restore(ModuleSystem.java:295)
	at org.netbeans.core.startup.Main.getModuleSystem(Main.java:169)
	at org.netbeans.core.startup.Main.start(Main.java:305)
	at org.netbeans.core.startup.TopThreadGroup.run(TopThreadGroup.java:123)
	at java.lang.Thread.run(Thread.java:722)


NetBeans IDE Dev (Build 201204250400)
1.7.0_03; OpenJDK 64-Bit Server VM 22.0-b10
Linux - 3.2.0-23-generic - amd64 ; UTF-8; zh_CN (nb)