openjdk 1.7 in eclipse: operator is not allowed for source level below 1.7

Question

Eclipse gives me an error:

\'<>\' operator is not allowed for source level below 1.7 

I guess this is because it is not using java 1

Answer 1

Window->Preferences->Java->Compiler

select 1.7 and hit okay.

If you are building automatically, it will require a full re-build.