Cannot load driver class: org.h2.Driver in spring boot application

It seems that your dependency

<dependency>
    <groupId>com.h2database</groupId>
    <artifactId>h2</artifactId>
    <scope>runtime</scope>
</dependency>

has to be in dependencies element, not in dependencyManagement. Just look at this. Or maybe you have a child artifact, in that case you must share another pom xml.