diff -r 6061ae1f90f2 -r 9bc16273c2d4 src/HOL/MicroJava/J/WellForm.thy
--- a/src/HOL/MicroJava/J/WellForm.thy	Fri Jun 17 11:35:35 2005 +0200
+++ b/src/HOL/MicroJava/J/WellForm.thy	Fri Jun 17 16:12:49 2005 +0200
@@ -6,7 +6,7 @@
 
 header {* \isaheader{Well-formedness of Java programs} *}
 
-theory WellForm = TypeRel + SystemClasses:
+theory WellForm imports TypeRel SystemClasses begin
 
 text {*
 for static checks on expressions and statements, see WellType.