diff --git a/src/main/java/com/alibaba/druid/pool/DruidDataSource.java b/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
index 56712f61a3..ecfb47edbc 100644
--- a/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
+++ b/src/main/java/com/alibaba/druid/pool/DruidDataSource.java
@@ -1834,7 +1834,7 @@ public class DruidDataSource extends DruidAbstractDataSource
                         try {
                             notEmpty.signalAll();
                         } finally {
-                            lock.lock();
+                            lock.unlock();
                         }
                     }
 
diff --git a/src/main/java/com/alibaba/druid/pool/DruidPooledConnection.java b/src/main/java/com/alibaba/druid/pool/DruidPooledConnection.java
index c9744f93f7..244c179736 100644
--- a/src/main/java/com/alibaba/druid/pool/DruidPooledConnection.java
+++ b/src/main/java/com/alibaba/druid/pool/DruidPooledConnection.java
@@ -1183,14 +1183,23 @@ public class DruidPooledConnection extends PoolableWrapper implements javax.sql.
         this.abandoned = true;
     }
     
+    /**
+     * @since 1.1.17
+     */
     public long getPhysicalConnectNanoSpan() {
         return this.holder.getCreateNanoSpan();
     }
     
+    /**
+     * @since 1.1.17
+     */
     public long getPhysicalConnectionUsedCount() {
         return this.holder.getUseCount();
     }
     
+    /**
+     * @since 1.1.17
+     */
     public long getConnectNotEmptyWaitNanos() {
         return this.holder.getLastNotEmptyWaitNanos();
     }