I’m working on a new Java project and I set up my Arch Linux operating system to have both Java Development Kit 1.7 and 1.8 coexisting at the same time. I tried using lambda expressions writing source code with my Eclim (Vim + Eclipse) system while I got the error Lambda expressions are allowed only at source level 1.8 or above.
“Damn, what’s happening!” was my first expression…:D:D:D
Anyway, the 
first thing I thought was about a conflict between OpenJDK 7 and OpenJDK 8. I uninstalled OpenJDK 8 and I run eclim again. Same error.
“What the hell!!!”…my second expression…:D:D:D:D:D
SOLUTION: GOOGLE!!!
Googling a little bit, I found a guy with my same problem. The real solution is easier than expected: just clean up the workspace, remove it and than starting eclim, allow it to create the new one.
BUG FIXED! 😉
Enjoy guys and happy hacking!
#gwh
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