diff --git a/src/com/wentch/redkale/util/ObjectPool.java b/src/com/wentch/redkale/util/ObjectPool.java
index 9aa2f0447..bcb34265b 100644
--- a/src/com/wentch/redkale/util/ObjectPool.java
+++ b/src/com/wentch/redkale/util/ObjectPool.java
@@ -55,7 +55,7 @@ public final class ObjectPool<T> implements Supplier<T> {
         this.creator = creator;
         this.prepare = prepare;
         this.recycler = recycler;
-        this.queue = new ArrayBlockingQueue<>(Math.max(Runtime.getRuntime().availableProcessors() * 2, max));
+        this.queue = new ArrayBlockingQueue(Math.max(Runtime.getRuntime().availableProcessors() * 2, max));
         this.debug = logger.isLoggable(Level.FINER);
     }