Apache Tomcat/6.0.18
${my:splitApply(apply)}
<function>
<name>splitApply</name>
<function-class>org.darkness.oa.web.UtilFunction</function-class>
<function-signature>
java.util.List
splitApply(org.darkness.oa.model.MeetingRoomApply)
</function-signature>
</function>
找了半天，原来function-signature标签里面，函数声明跟返回类型必须在同一行，都是习惯Ctrl+Shift+F惹的祸，解决方法：
<function>
<name>splitApply</name>
<function-class>org.darkness.oa.web.UtilFunction</function-class>
<function-signature>
java.util.List splitApply(org.darkness.oa.model.MeetingRoomApply)
</function-signature>
</function>
[转]JSTL 自定义方法报错Invalid syntax for function signature in TLD.
原文：https://www.cnblogs.com/dirgo/p/10159829.html