Maven2 Failure to transfer
Remove all your failed downloads:
For Linux
find ~/.m2 -name "*.lastUpdated" -exec grep -q "Could not transfer" {} \; -print -exec rm {} \;
For windows:
cd %userprofile%\.m2\repository
for /r %i in (*.lastUpdated) do del %i
rightclick on your project in eclipse and choose Maven->Update Dependencies