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class Password {
  private static void changePassword() {
    // Use own privilege to open the sensitive password file
    final String password_file = "password""password"; 
    final FileInputStream f[] = {null};
    AccessController.doPrivileged(new PrivilegedAction() {
      public Object run() {
        try {
          f[0] = openPasswordFile(password_file);  // call the privileged method here
        } catch(FileNotFoundException cnf) { 
          // cannot recover if password file is not found; log to file 
        }
        return null;
      }
    });
    //Perform other operations such as old password verification
  }	

  private static FileInputStream openPasswordFile(String password_file) throws FileNotFoundException {
    FileInputStream f = new FileInputStream(password_file);
    // Perform read/write operations on password file
    return f;
  }
}

public static void readFont() throws FileNotFoundException {
  // Use own privilege to open the font file
  final String font_file = "fontfile""fontfile";
  try {
    final InputStream in =
    AccessController.doPrivileged(new PrivilegedExceptionAction<InputStream>PrivilegedExceptionAction&lt;InputStream&gt;() {
				  
     public InputStream run() throws FileNotFoundException {
       return openFontFile(font_file); //call the privileged method here
     }
    });
    // Perform other operations 
  } catch (PrivilegedActionException exc) {				
      Exception cause = exc.getException();
      if (cause instanceof FileNotFoundException) {
        throw (FileNotFoundException)cause;
      } else { throw new Error("&quot;Unexpected exception type"&quot;, cause); }
    }			
}