在Groovy中，如何为闭包中的参数获取注释值？

import groovy.transform.CompileStatic

@CompileStatic
def myClosure = { @MyAnnotation String param ->
    // 闭包逻辑
}

import java.lang.reflect.Field

def myClosure = { @MyAnnotation String param ->
    def field = myClosure.getClass().getDeclaredField("param")
    def annotation = field.getAnnotations()[0]
    def annotationValue = annotation.value()
    println(annotationValue)
}

myClosure.call("example")