diff -r 8ff8e5d00115 -r 27778363775d etc/settings
--- a/etc/settings	Wed Apr 23 10:38:56 2014 +0200
+++ b/etc/settings	Wed Apr 23 10:49:30 2014 +0200
@@ -12,7 +12,7 @@
 ### Isabelle/Scala
 ###
 
-ISABELLE_SCALA_BUILD_OPTIONS="-nowarn -target:jvm-1.5 -Xmax-classfile-name 130"
+ISABELLE_SCALA_BUILD_OPTIONS="-encoding UTF-8 -nowarn -target:jvm-1.7 -Xmax-classfile-name 130"
 
 ISABELLE_JAVA_SYSTEM_OPTIONS="-Dfile.encoding=UTF-8 -server"