自己维护notEmptyWaitThreadCount计数

git-svn-id: http://code.alibabatech.com/svn/druid/trunk@714 b9813039-fb51-4c41-a8b9-e21c2acb5095

src/main/java/com/alibaba/druid/pool/DruidDataSource.java

@@ -1009,6 +1009,10 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
         return notEmptyWaitCount;
     }
 
+    public int getNotEmptyWaitThreadCount() {
+        return notEmptyWaitThreadCount;
+    }
+
     public long getNotEmptySignalCount() {
         return notEmptySignalCount;
     }

src/main/java/com/alibaba/druid/pool/DruidDataSourceMBean.java

@@ -34,6 +34,8 @@ public interface DruidDataSourceMBean extends DruidAbstractDataSourceMBean {
     int getLockQueueLength();
 
     long getNotEmptyWaitCount();
+    
+    int getNotEmptyWaitThreadCount();
 
     long getNotEmptySignalCount();