as of r1675948, "ant clean jar-checksums" results in a modified solr/licenses/start.jar.sha1 ...
hossman@frisbee:~/lucene/dev$ svn diff
--- solr/licenses/start.jar.sha1 (revision 1675948)
+++ solr/licenses/start.jar.sha1 (working copy)
@@ -1 +1 @@
...so apparently the version of start.jar we're fetching from ivy & using in solr changed at some point w/o the SHA1 being updated?
apparently because "check-licenses" is explicitly ignoring start.jar...
<!-- Exclude start.jar only (it'd be weird to have a license file there?) -->
<exclude name="server/start.jar" />
...this is seriously messed up. we need to fix this.