Clear channel pool on close

Author: slandelle

client/src/main/java/org/asynchttpclient/netty/channel/ChannelManager.java

@@ -354,12 +354,17 @@ public void preemptChannel(Object partitionKey) throws IOException {
         }
     }
 
+    private void doClose() {
+        openChannels.close();
+        channelPool.destroy();
+    }
+
     public void close() {
         if (allowReleaseEventLoopGroup) {
             eventLoopGroup.shutdownGracefully(config.getShutdownQuietPeriod(), config.getShutdownTimeout(), TimeUnit.MILLISECONDS)//
-                    .addListener(future -> openChannels.close());
+                    .addListener(future -> doClose());
         } else
-            openChannels.close();
+            doClose();
     }
 
     public void closeChannel(Channel channel) {

client/src/main/java/org/asynchttpclient/netty/channel/DefaultChannelPool.java

@@ -305,11 +305,6 @@ public void destroy() {
         if (isClosed.getAndSet(true))
             return;
 
-        for (ConcurrentLinkedDeque<IdleChannel> partition : partitions.values()) {
-            for (IdleChannel idleChannel : partition)
-                close(idleChannel.channel);
-        }
-
         partitions.clear();
         if (connectionTtlEnabled) {
             channelId2Creation.clear();