Add okhttp dep to r5 and indicate which deps need to be included
<artifactId>maven-javadoc-plugin</artifactId>
<configuration>
<show>public</show>
+ <includeDependencySources>true</includeDependencySources>
+ <dependencySourceIncludes>
+ <include>ca.uhn.hapi.fhir:org.hl7.fhir.r5</include>
+ </dependencySourceIncludes>
+ <additionalDependencies>
+ <dependency>
+ <groupId>com.squareup.okhttp3</groupId>
+ <artifactId>okhttp</artifactId>
+ <version>${okhttp_version}</version>
+ </dependency>
+ </additionalDependencies>
</configuration>
</plugin>
</plugins>
