The actual problem is in the dspace-parent POM, where we still specify Java 6.  DSpace 4.0+ requires Java 7.  Travis is actually *using* a 1.7 JDK but we are telling it to adhere to 1.6 syntax.  The correct cure is to fix the POM to match our current requirements.

https://jira.duraspace.org/browse/DS-1935