从XSD XML模式（使用JAXB）生成示例JSON文档的快速而简单的方法是什么？

My project is using JAXB to turn XSD (XML schema) into POJO and cxf to turn the populated classes into JSON. Is there a tool that can take the schema, and generate a sample JSON document for me? Ideally command line, or a 5 line Java snippet.My project is using JAXB to turn XSD (XML schem