Add jersey-media-multipart (+ mimepull) for controller.
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-jackson</artifactId>
</dependency>
+ <dependency>
+ <!-- Not needed by configserver, but by controller. Also pulls in mimepull. -->
+ <groupId>org.glassfish.jersey.media</groupId>
+ <artifactId>jersey-media-multipart</artifactId>
+ </dependency>
<!-- Jersey END -->
</dependencies>
