Add jackson to pom

    </properties>

    <dependencies>

        <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->

        <dependency>

            <groupId>com.fasterxml.jackson.core</groupId>

            <artifactId>jackson-databind</artifactId>

            <version>2.12.3</version>

        </dependency>

        <dependency>

            <groupId>com.google.code.findbugs</groupId>

            <artifactId>jsr305</artifactId>