Update version of graphql-java from 2.2.0 to 2.3.0 and fix tests#16

apottere merged 1 commit intographql-java-kickstart:mastergraphql-java-kickstart/graphql-java-servlet:masterfrom

Cox-Automotive:update-graphql-javaCox-Automotive/graphql-java-servlet:update-graphql-javaCopy head branch name to clipboard