Starting Lucee server bundle org.apache.xml.dtm.DTMManager not found errors

I see number of these messages in the log:

DEBUG [Thu May 04 10:42:57 EDT 2017]:
Bundle org.apache.commons.net [28] META-INF/services/org.apache.xml.dtm.DTMManager not found by org.apache.commons.net [28]
DEBUG [Thu May 04 10:42:57 EDT 2017]:
Bundle org.apache.oro [29] META-INF/services/org.apache.xml.dtm.DTMManager not found by org.apache.oro [29]

What do they mean? Running lucee-5.0.0.254-pl0-linux-x64.