java.lang.NoClassDefFoundError: org/yaml/snakeyaml/LoaderOptions

NoClassDefFound: The class dependency is not found.

add org/yaml dependency to the file pom.xml:

<!-- https://mvnrepository.com/artifact/org.yaml/snakeyaml -->
<dependency>
    <groupId>org.yaml</groupId>
    <artifactId>snakeyaml</artifactId>
    <version>2.14</version>
</dependency>