This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Its a wrong dependency which conflicted jar files. Try removing the culprit version of the jar file, which you included through pom.xml, and try again. Faced similar stuff some time ago. purely compatibility issue. the server support is also seems to be not there.