diff -r eedea6f0b37e -r 549969a7f582 lib/Tools/scala
--- a/lib/Tools/scala	Wed Jan 06 18:22:43 2010 +0100
+++ b/lib/Tools/scala	Wed Jan 06 20:00:22 2010 +0100
@@ -4,5 +4,7 @@
 #
 # DESCRIPTION: invoke Scala within the Isabelle environment
 
+[ -e "$ISABELLE_HOME/Admin/build" ] && "$ISABELLE_HOME/Admin/build" jars
+
 CLASSPATH="$(jvmpath "$CLASSPATH")"
 exec "$ISABELLE_SCALA" "$@"