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public class Password { 
  public static void changePassword(String password_file) throws FileNotFoundException {
    FileInputStream fin;
    fin = openPasswordFile(password_file);
  }
	
  public static FileInputStream openPasswordFile(String password_file) throws FileNotFoundException {
    //Declare as final and assign before the body of the anonymous inner class
    //Array f[] is used to maintain language semantics while using final 
    final FileInputStream f[]={null};
    final String file =  password_file;
    //Use own privilege to open the sensitive password file
    AccessController.doPrivileged(new PrivilegedAction() {
      public Object run() {   
        try {
            f[0] = new FileInputStream("c:\\" + file);	//Perform privileged action
        }catch(FileNotFoundException cnf) { System.err.println(cnf.getMessage()); }
        return null;    //Still mandatory to return from run()
      }
    });
   return f[0];  //Returns a reference to privileged objects (inappropriate)
 }	
}