与MySQL的额外连接

Question

好吧，我有一个简单的java应用程序，它有10个与MySQL的jdbc连接，我通过DataSource上的JMX MBean信息检查了这个。

但是，当我试图从终端grep这个信息时：

$ netstat -natp | grep 3306 | grep java | wc -l
11

$ netstat -natp | grep 3306 | grep java
tcp6       0      0 192.168.11.40:60784     192.168.11.41:3306      ESTABLISHED 25772/java      
tcp6       0      0 192.168.11.40:60838     192.168.11.41:3306      ESTABLISHED 25772/java      
tcp6       0      0 192.168.11.40:60779     192.168.11.41:3306      ESTABLISHED 25772/java      
tcp6       0      0 192.168.11.40:60729     192.168.11.41:3306      ESTABLISHED 25772/java      
tcp6       0      0 192.168.11.40:60786     192.168.11.41:3306      ESTABLISHED 25772/java      
tcp6       0      0 192.168.11.40:60931     192.168.11.41:3306      ESTABLISHED 25772/java      
tcp6       0      0 192.168.11.40:59997     192.168.11.41:3306      ESTABLISHED 25772/java      
tcp6       0      0 192.168.11.40:60874     192.168.11.41:3306      ESTABLISHED 25772/java      
tcp6       0      0 192.168.11.40:60895     192.168.11.41:3306      ESTABLISHED 25772/java      
tcp6       0      0 192.168.11.40:60900     192.168.11.41:3306      ESTABLISHED 25772/java      
tcp6       0      0 192.168.11.40:60794     192.168.11.41:3306      ESTABLISHED 25772/java

好奇，我一无所知=（