Why can't it find the file / incorrect path to the file?

Question

Java

Please explain to me why when using this design

<jsp:include page="${pageContext.request.contextPath}/head/head.jsp"/>

error file not found????
It also doesn't go

<jsp:include page="${pageContext.request.contextPath}/webapp/head/head.jsp"/>

Because he really is...

Answer 1

And why not
?