我可以通过将以下条目添加到xsdOption元素中，使cxf-xjc-plugin在UTF-8中生成源:

I could make cxf-xjc-plugin generate sources in UTF-8 by adding the following entry to the xsdOption element:

<extensionArgs>
    <arg>-encoding</arg>
    <arg>UTF-8</arg>
</extensionArgs>