Inside the Maven2 repo, this pom for SLF4J 1.0 appears to be in Maven2
format:
http://www.ibiblio.org/maven2/org/slf4j/slf4j-log4j12/1.0/slf4j-log4j12-1.0.pom
but this one for SLF4J 1.0.1 appears to be in Maven1 format:
http://www.ibiblio.org/maven2/org/slf4j/slf4j-log4j12/1.0.1/slf4j-log4j12
Maven 2 have support for Maven 1 Repositories (use legacy layout when
specifying the m1 repo)
But a Maven 2 repository is expected to have only Maven 2 poms. So an
m2 repo with an m1 pom is not valid and maven will report this but
however, will not fail the build.
To report such occurrenc