diff --git a/core-api/src/main/java/com/optimizely/ab/Optimizely.java b/core-api/src/main/java/com/optimizely/ab/Optimizely.java
index 66dd30d15..b1c6e23e1 100644
--- a/core-api/src/main/java/com/optimizely/ab/Optimizely.java
+++ b/core-api/src/main/java/com/optimizely/ab/Optimizely.java
@@ -350,6 +350,8 @@ private boolean sendImpression(@Nonnull ProjectConfig projectConfig,
         // Legacy API methods only apply to the Experiment type and not to Holdout.
         boolean isExperimentType = experiment instanceof Experiment;
 
+        // [TESTING]
+        
         // Kept For backwards compatibility.
         // This notification is deprecated and the new DecisionNotifications
         // are sent via their respective method calls.