From 1c8f1e13422a87acf46899e93ae3b8877f3dceba Mon Sep 17 00:00:00 2001
From: novachevskyi <stasdjobs@gmail.com>
Date: Tue, 2 Aug 2016 17:01:02 +0300
Subject: [PATCH] Null check added for node variable inside of
 KeyManager::decrementAndMaybeRemoveKey method body.

---
 flow/src/main/java/flow/KeyManager.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/flow/src/main/java/flow/KeyManager.java b/flow/src/main/java/flow/KeyManager.java
index 51ecac3..af6bfdf 100644
--- a/flow/src/main/java/flow/KeyManager.java
+++ b/flow/src/main/java/flow/KeyManager.java
@@ -128,6 +128,9 @@ void tearDown(Object key) {
 
   private boolean decrementAndMaybeRemoveKey(Object key) {
     ManagedServices node = managedServices.get(key);
+    if(node == null) {
+      return false;
+    }
     node.uses--;
     if (key != ROOT_KEY && node.uses == 0) {
       int count = servicesFactories.size();