Just so you know, there is a bug currently in JDT that causes
compilation errors if compiling against Java 7 or less but using a
JRE 8.
https://bugs.eclipse.org/bugs/show_bug.cgi?id=390889#c15
Not sure how important it is for us. Since Fedora 21 will most
likely ship Java 8 by default, it's highly possible that Eclipse and
JBoss Developer Studio users on Fedora get highly annoyed by this
issue.