solr-core is depending on solr-lucene-core, which contains an outdated version of Lucene.
An effect of this problem is gettin errors like
Caused by: java.lang.NoSuchFieldError: ANALYZED
As such a field is contained in the Lucene version of org.apache.lucene.document.Field.INDEX
but not in the (same package name!) version of solr-lucene-core.
Because of classloaders normally working in alphabetical order this works "most of the time", but deployments having unusual
library positions are failing with an hard to debug error.