A framework such as jersey will often be packaged into a web application. For
example we're using it to do REST in Atlassian JIRA. Using java util logging
for such a framework is a bit of problem because it can only be configured on a
JVM wide level. In web development there may be many different webapps deployed
side by side (many of which may use java util logging) so adding global (JVM
wide) java util logging configuration isn't really an option.
Jersey should switch to a logging framework like SLF4J.