diff --git a/examples/simple_async_init/bus.js b/examples/simple_async_init/bus.js
new file mode 100644
index 0000000..dcb1c53
--- /dev/null
+++ b/examples/simple_async_init/bus.js
@@ -0,0 +1,15 @@
+var Bus = function() {}
+
+Bus.prototype.init = function(cb) {
+	console.log('init Bus...');
+	setTimeout(function() {
+		console.log('Bus asyncInit setTimeout');
+		cb();
+	}, 500);
+}
+
+Bus.prototype.run = function() {
+	console.log('run bus...');
+}
+
+module.exports = Bus;
\ No newline at end of file
diff --git a/examples/simple_async_init/context.json b/examples/simple_async_init/context.json
index 9654ed1..6dc4989 100644
--- a/examples/simple_async_init/context.json
+++ b/examples/simple_async_init/context.json
@@ -4,12 +4,22 @@
 		"id": "car",
 		"func": "car",
 		"init": "init",
-		"order": 2
+		"order": 1,
+		"props": [{
+			"name": "wheel",
+			"ref": "wheel"
+		}]
 	}, {
 		"id": "wheel",
 		"func": "wheel",
 		"async": true,
 		"init": "init",
-		"order": 1
+		"order": 2
+	}, {
+		"id": "bus",
+		"func": "bus",
+		"async": true,
+		"init": "init",
+		"order": 3
 	}]
 }
\ No newline at end of file
diff --git a/lib/beans/beanFactory.js b/lib/beans/beanFactory.js
index f59384a..3c91617 100644
--- a/lib/beans/beanFactory.js
+++ b/lib/beans/beanFactory.js
@@ -524,11 +524,16 @@ BeanFactory.prototype.preInstantiateSingletons = function(cb) {
 		var beanDefinition = beanDefinitionOrderList[index++];
 		var beanName = beanDefinition.getBeanName();
 		if (beanDefinition.isAsyncInit()) {
-			var initCb = function() {
-				next();
+			if (!self.singletonBeanFactory.containsSingleton(beanName)) {
+				var initCb = function() {
+					next();
+				}
+				self.setInitCb(beanName, initCb);
+				self.getBean(beanName);
+			} else {
+				self.getBean(beanName);
+				next()
 			}
-			self.setInitCb(beanName, initCb);
-			self.getBean(beanName);
 		} else {
 			var initCb = function() {}
 			self.setInitCb(beanName, initCb);
diff --git a/lib/beans/singletonBeanFactory.js b/lib/beans/singletonBeanFactory.js
index 5fd3ca7..dbab9d7 100644
--- a/lib/beans/singletonBeanFactory.js
+++ b/lib/beans/singletonBeanFactory.js
@@ -43,7 +43,7 @@ SingletonBeanFactory.prototype.addSingleton = function(beanName, beanObject) {
  * @api public
  */
 SingletonBeanFactory.prototype.containsSingleton = function(beanName) {
-	return this.singletonObjects[beanName] !== null;
+	return !!this.singletonObjects[beanName];
 }
 
 /**
diff --git a/package.json b/package.json
index c85f465..ee746bc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bearcat",
-  "version": "0.1.1",
+  "version": "0.1.2",
   "description": "a POJOs based application framework for node.js",
   "main": "index.js",
   "scripts": {
diff --git a/test/context/debug.js b/test/context/debug.js
index d61d9c0..09a0851 100644
--- a/test/context/debug.js
+++ b/test/context/debug.js
@@ -8,21 +8,14 @@ var ApplicationContext = require('../../lib/context/applicationContext');
 
 // var car = applicationContext.getBean('car');
 // var r = car.run();
-var simplepath = require.resolve('../../examples/placeholder/context.json');
+var simplepath = require.resolve('../../examples/simple_async_init/context.json');
 var paths = [simplepath];
-var path = require('path');
-
-var configPath = path.dirname(simplepath) + '/config';
 
 var applicationContext = new ApplicationContext(paths);
-applicationContext.setConfigPath(configPath);
-applicationContext.refresh();
-
-var car = applicationContext.getBean('car');
-var r = car.run();
+applicationContext.on('finishRefresh', function() {
+	var car = applicationContext.getBean('car');
+	var r = car.run();
 
-applicationContext.setEnv('prod');
-applicationContext.refresh();
+});
 
-car = applicationContext.getBean('car');
-r = car.run();
\ No newline at end of file
+applicationContext.refresh();
\ No newline at end of file