Condition also considered synchronization

src/AssignmentSupermarketRules.rsc

@@ -29,5 +29,6 @@ set[Message] aSupermarket_no_synchronized_block(set[Declaration] ast) =
 set[Message] aSupermarket_only_register_belt_synchronization(M3 model) =
   { error("class <getName(model,c)> should not have synchronization code", c)
   | c <- classes(model) - { findClass(model, "Register"), findClass(model, "ConveyorBelt") }
-  , javaUtilLock in allTypeDependenciesLoc(model, c)
+  ,    javaUtilLock      in allTypeDependenciesLoc(model, c)
+    || javaUtilCondition in allTypeDependenciesLoc(model, c)
   };
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