How to generate default empty array value in @interface using Java's CodeModel

Question

I'm using Java's CodeModel to generate some annotations code. However, I can't find a way to indicate that a parameter's default value should be the empty array, expressed as {}.

Example:

public @interface Example {
    Class<?>[] groups() default {};
}

I know I can use JDefinedClass#direct(String) to output raw code, but I would like to generate everything programatically.