Ambiguous method overloading for method ****** 异常
前言：关于该异常，我是在stackoverflow上(/questions/33410033/groovy-ambiguous-method-overload)找到解决方案的，大家也可以去看看专业人士说的，本人小白，说的比较通俗，大佬勿怪
异常如下：
Caused by: groovy.lang.GroovyRuntimeException: Ambiguous method overloading for method cn.hutool.core.collection.CollectionUtil#isNotEmpty.Cannot resolve which method to invoke for [null] due to overlapping prototypes between:[interface java.lang.Iterable][interface java.util.Collection][interface java.util.Enumeration][interface java.util.Iterator][interface java.util.Map]
其实就是CollectionUtil.isNotEmpty方法的重载，导致不知道调用哪一个方法了，所以检查一下你传入的参数是否为null 值，就这么简单
