We have to include spring-web and spring-webmvc dependencies in pom.xml, as well as including a servlet-programming interface, JSP-programming interface, and JSTL dependencies. Here's part of the pom.xml file (the full version is on GitHub) of our project with the Spring Core, Kotlin, and Web dependencies:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
     ----
     ----
    <properties>
       <springframework.version>5.0.8.RELEASE</springframework.version>
        <kotlin.version>1.3.0</kotlin.version>
        <jstl.version>1.2</jstl.version>
    </properties>

    <dependencies>
        <!--Spring dependencies-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
        </dependency>
        ----
        ----
        ----

        <!--We need to add the following Kotlin dependencies-->
        <dependency>
            <groupId>org.jetbrains.kotlin</groupId>
            <artifactId>kotlin-stdlib-jdk8</artifactId>
        </dependency>
    </dependencies>
    
    <build>
    <plugins>
        ----
        ----
    </plugins>
    </build>
</project>