diff --git a/plugins/org.eclipse.emf.ecore/src/org/eclipse/emf/ecore/impl/EStructuralFeatureImpl.java b/plugins/org.eclipse.emf.ecore/src/org/eclipse/emf/ecore/impl/EStructuralFeatureImpl.java
index 775659716..5bc20743f 100644
--- a/plugins/org.eclipse.emf.ecore/src/org/eclipse/emf/ecore/impl/EStructuralFeatureImpl.java
+++ b/plugins/org.eclipse.emf.ecore/src/org/eclipse/emf/ecore/impl/EStructuralFeatureImpl.java
@@ -146,6 +146,7 @@ else if (eType instanceof EDataType)
             catch (Throwable e)
             {
               // At development time, the real factory may not be available. Just return null.
+              // The absence of the real factory method may be circumvented by defining a conversion delegate for eDataType.
               //
               defaultValue = null;
             }