The absolute uri: [http://java.sun.com/jsp/jstl/core] cannot be resolved in either web.xml or the jar files deployed with this application] with root cause org.apache.jasper.JasperException: /XXX.jsp (line: [x], column: [x]) The absolute uri: [http://java.sun.com/jsp/jstl/core] cannot be resolved in either web.xml or the jar files deployed with this application C태그를 쓰기 위해서 jstl을 끌어오려고 taglib에 ur..