The minimal test case would be to attempt to resolve an artifact from

<http://osgeo.org|osgeo.org>

that has

jai_core

as a dependency with

<http://repo1.maven.org|repo1.maven.org>

as the first repo argument, and then re-attempt with

<http://osgeo.org|osgeo.org>

as the first repo argument, without blowing away the cache