Failure to transfer commons-lang:commons-lang:pom:2.1 from https://repo.maven.apache.org/maven2 was cached in the local repository

경로 : https://stackoverflow.com/questions/5074063/maven-error-failure-to-transfer

Remove all your failed downloads:

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

Then rightclick on your project in eclipse and choose Maven->"Update Project ...", make sure "Update Dependencies" is checked in the resulting dialog and click OK.