diff -r ef623f6f036b -r f373fb77e0a4 src/Tools/jEdit/src/font_info.scala
--- a/src/Tools/jEdit/src/font_info.scala	Tue Apr 22 23:31:45 2014 +0200
+++ b/src/Tools/jEdit/src/font_info.scala	Tue Apr 22 23:49:15 2014 +0200
@@ -42,7 +42,7 @@
   {
     private def change_size(change: Float => Float)
     {
-      Swing_Thread.require()
+      Swing_Thread.require {}
 
       val size0 = main_size()
       val size = restrict_size(change(size0)).round