AccessController.doPrivileged(new PrivilegedAction() ) : AccessController « Security « Java






  1. Java
  2. Security
  3. AccessController

AccessController.doPrivileged(new PrivilegedAction() )

 

import java.io.File;
import java.security.AccessController;
import java.security.PrivilegedAction;


public class Main {

  
  static long getLastModified(final File f) {
      return ((Long)
              AccessController.doPrivileged(new PrivilegedAction() {
                  public Object run() {
                      return new Long(f.lastModified());
                  }
              })).longValue();
  }
  
}








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