From 1e8b74163157c32d3b12b2ad05f75930cadfc91b Mon Sep 17 00:00:00 2001
From: Sven-Torben Janus <sven-torben@sven-torben.de>
Date: Tue, 4 Oct 2016 16:01:00 +0200
Subject: [PATCH] Fixes livelock

---
 .../src/main/java/org/tomitribe/microscoped/core/Scope.java | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/microscoped-core/src/main/java/org/tomitribe/microscoped/core/Scope.java b/microscoped-core/src/main/java/org/tomitribe/microscoped/core/Scope.java
index eebca4c..a18b023 100644
--- a/microscoped-core/src/main/java/org/tomitribe/microscoped/core/Scope.java
+++ b/microscoped-core/src/main/java/org/tomitribe/microscoped/core/Scope.java
@@ -43,7 +43,11 @@ public Key getKey() {
      * @return existing or newly created bean instance, never null
      */
     public <T> T get(final Contextual<T> contextual, final CreationalContext<T> creationalContext) {
-        return (T) instances.computeIfAbsent(contextual, c -> new Instance<>(contextual, creationalContext)).get();
+        if (!instances.containsKey(contextual)) {
+            final Instance<T> instance = new Instance<>(contextual, creationalContext);
+            instances.putIfAbsent(contextual, instance);
+        }
+        return (T) instances.get(contextual).get();
     }
 
     /**