请问:
import org.jdesktop.application.Action;

public class JavaEditorAboutBox extends javax.swing.JDialog {

    public JavaEditorAboutBox(java.awt.Frame parent) {
        super(parent);
        initComponents();
        getRootPane().setDefaultButton(closeButton);
    }

    @Action public void closeAboutBox() {
        setVisible(false);
    }

中的@Action是干什么用的?