pom.xml 파일에서 아래와 같은 오류가 발생시..
마지막 업데이트 삭제 후 upadte.
failure to transfer org.apache.maven:maven-core:pom:2.0.6 from https://repo1.maven.org/maven2/ was cached in the local repository, resolution will not be reattempted until the update interval of central.mirror has elapsed or updates are for

windows
> cd %userprofile%\.m2\repository
> for /r %i in (*.lastUpdated) do del %i