@ActionID(
        category = "Build",
        id = "com.foo.bar.OnJavaPackageAction")
@ActionRegistration(
        displayName = "#CTL_OnJavaPackageAction")
@ActionReferences({
    @ActionReference(path = "Projects/package/Actions", position = 0)
})
@Messages("CTL_OnJavaPackageAction=OnJavaPackageAction")
public final class OnJavaPackageAction implements ActionListener {

    private final DataFolder context;

    public OnJavaPackageAction(DataFolder context) {
        this.context = context;
    }

    @Override
    public void actionPerformed(ActionEvent ev) {
        JOptionPane.showMessageDialog(null, context.toString());
    }
}