From 5fda30bbb5ba8d990eb675507c4c47abf9a8a3bf Mon Sep 17 00:00:00 2001
From: "Matthias J. Sax" <matthias@confluent.io>
Date: Wed, 26 Oct 2016 11:04:39 -0700
Subject: [PATCH] MINOR: improve JavaDoc for Streams window retention time

---
 .../main/java/org/apache/kafka/streams/kstream/Windows.java    | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/streams/src/main/java/org/apache/kafka/streams/kstream/Windows.java b/streams/src/main/java/org/apache/kafka/streams/kstream/Windows.java
index f060d394926be..5a4f0d42f2b02 100644
--- a/streams/src/main/java/org/apache/kafka/streams/kstream/Windows.java
+++ b/streams/src/main/java/org/apache/kafka/streams/kstream/Windows.java
@@ -40,7 +40,8 @@ protected Windows() {
     }
 
     /**
-     * Set the window maintain duration in milliseconds of system time.
+     * Set the window maintain duration in milliseconds of streams time.
+     * This retention time is a guaranteed <i>lower bound</i> for how long a window will be maintained.
      *
      * @return  itself
      */