rest-endpoint quickstart returns HTTP response code: 406

[WARNING] 
java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:297)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.RuntimeException: java.io.IOException: Server returned HTTP response code: 406 for URL: http://localhost:8080/rest/teams/teams
	at org.jboss.as.quickstarts.datagrid.rest.RESTCache.doOperation(RestCache.java:79)
	at org.jboss.as.quickstarts.datagrid.rest.RESTCache.get(RestCache.java:124)
	at org.jboss.as.quickstarts.datagrid.rest.FootballManager.<init>(FootballManager.java:56)
	at org.jboss.as.quickstarts.datagrid.rest.FootballManager.main(FootballManager.java:137)
	... 6 more
Caused by: java.io.IOException: Server returned HTTP response code: 406 for URL: http://localhost:8080/rest/teams/teams
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1894)
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492)
	at org.jboss.as.quickstarts.datagrid.rest.RESTCache.doOperation(RestCache.java:67)
	... 9 more