[1.2.5] Greenscript 1.2.8b not recompiling less files in DEV mode

[mgutz]

I'm using Rythm module latest with Greenscript. LESS files don't recompile when I edit them. Play is running in DEV mode. `@greenscript.css("main", all:true)` emits the `link` once but it doesn't regenerate. I set all greenscript cache properties to false in application.conf. Any ideas?

[mgutz]

Seems to be a Java 7 issue. Switching back to Java 6 fixed it.