public interface PrivilegedExceptionAction<T>
PrivilegedExceptionAction
AccessController.doPrivileged
PrivilegedAction
AccessController
AccessController.doPrivileged(PrivilegedExceptionAction)
AccessController.doPrivileged(PrivilegedExceptionAction, AccessControlContext)
T
run()
T run()throws 异常
异常
AccessController.doPrivileged(PrivilegedExceptionAction,AccessControlContext)