复制到C：\ Windows \ System32 \ ICE_JNIRegistry.dll时Files.copy AccessDeniedException

Question

我正在使用Java 7 API提供的新“Files.copy [InputStream source，Path dest，REPLACE_EXISTING]”方法。

我正在将一个.dll从InputStream复制到C：\ Windows \ System32。显然，我需要管理员权限才能执行此操作。我正在使用管理员权限从命令提示符运行.jar文件，所以这应该不是问题。

当我尝试这样做时，我得到一个java.nio.file.AccessDeniedException。以下是整个堆栈跟踪的打印：

java.nio.file.AccessDeniedException: C:\Windows\System32\ICE_JNIRegistry.dll
        at sun.nio.fs.WindowsException.translateToIOException(WindowsException.j
ava:83)
        at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.jav
a:97)
        at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.jav
a:102)
        at sun.nio.fs.WindowsFileSystemProvider.newByteChannel(WindowsFileSystem
Provider.java:229)
        at java.nio.file.spi.FileSystemProvider.newOutputStream(FileSystemProvid
er.java:430)
        at java.nio.file.Files.newOutputStream(Files.java:170)
        at java.nio.file.Files.copy(Files.java:2832)
        at prerequirementform.PreRequirementForm.<init>(PreRequirementForm.java:
49)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstruct
orAccessorImpl.java:57)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingC
onstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
        at com.izforge.izpack.installer.InstallerFrame.loadPanels(Unknown Source
)
        at com.izforge.izpack.installer.InstallerFrame.<init>(Unknown Source)
        at com.izforge.izpack.installer.GUIInstaller.loadGUI(Unknown Source)
        at com.izforge.izpack.installer.GUIInstaller.access$100(Unknown Source)
        at com.izforge.izpack.installer.GUIInstaller$2.run(Unknown Source)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
        at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:727)
        at java.awt.EventQueue.access$200(EventQueue.java:103)
        at java.awt.EventQueue$3.run(EventQueue.java:688)
        at java.awt.EventQueue$3.run(EventQueue.java:686)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDo
main.java:76)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:697)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThre
ad.java:242)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.
java:161)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.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)

非常感谢任何帮助。