The current module.xml from the distributed AS7 SOLR module contains the following resources:
<resource-root path="jcommons-io-${commonsIoVersion}.jar" /> <resource-root path="jcommons-codec-${commonsCodecVersion}.jar" /> <resource-root path="jcommons-lang-${commonsLangVersion}.jar" />
The correct resource names should be without the j letter at the beginning.