diff --git a/plugins/org.eclipse.xtend/src/org/eclipse/internal/xtend/expression/debug/ExpressionElementAdapter.java b/plugins/org.eclipse.xtend/src/org/eclipse/internal/xtend/expression/debug/ExpressionElementAdapter.java
index 619e673..5cade4f 100644
--- a/plugins/org.eclipse.xtend/src/org/eclipse/internal/xtend/expression/debug/ExpressionElementAdapter.java
+++ b/plugins/org.eclipse.xtend/src/org/eclipse/internal/xtend/expression/debug/ExpressionElementAdapter.java
@@ -297,6 +297,9 @@
 		}
 	}
 
+	/**
+	 * @since 2.2
+	 */
 	public boolean shallAddToCallStack(Object element) {
 		return true;
 	}