com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link fai
lure

Last packet sent to the server was 0 ms ago.
        at sun.reflect.GeneratedConstructorAccessor11.newInstance(Unknown Source
)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Sou
rce)
        at java.lang.reflect.Constructor.newInstance(Unknown Source)
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
        at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1
074)
        at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2120)
        at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:723)
        at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
        at sun.reflect.GeneratedConstructorAccessor5.newInstance(Unknown Source)

        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Sou
rce)
        at java.lang.reflect.Constructor.newInstance(Unknown Source)
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
        at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:302)
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java
:282)
        at com.mysql.jdbc.jdbc2.optional.MysqlDataSource.getConnection(MysqlData
Source.java:440)
        at com.mysql.jdbc.jdbc2.optional.MysqlDataSource.getConnection(MysqlData
Source.java:138)
        at com.mysql.jdbc.jdbc2.optional.MysqlDataSource.getConnection(MysqlData
Source.java:108)
        at com.mysql.jdbc.jdbc2.optional.MysqlConnectionPoolDataSource.getPooled
Connection(MysqlConnectionPoolDataSource.java:58)
        at mysql.DataBase.getConnection(DataBase.java:55)
        at mysql.Request.sendRequest(Request.java:36)
        at server.ServerList.run(ServerList.java:163)
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The driver w
as unable to create a connection due to an inability to establish the client por
tion of a socket.

This is usually caused by a limit on the number of sockets imposed by the operat
ing system. This limit is usually configurable.

For Unix-based platforms, see the manual page for the 'ulimit' command. Kernel o
r system reconfiguration may also be required.

For Windows-based platforms, see Microsoft Knowledge Base Article 196271 (Q19627
1).
        at sun.reflect.GeneratedConstructorAccessor11.newInstance(Unknown Source
)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Sou
rce)
        at java.lang.reflect.Constructor.newInstance(Unknown Source)
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
        at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1
074)
        at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:335)
        at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2043)
        ... 15 more
Caused by: java.net.BindException: Address already in use: connect
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.PlainSocketImpl.doConnect(Unknown Source)
        at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
        at java.net.PlainSocketImpl.connect(Unknown Source)
        at java.net.SocksSocketImpl.connect(Unknown Source)
        at java.net.Socket.connect(Unknown Source)
        at java.net.Socket.connect(Unknown Source)
        at java.net.Socket.<init>(Unknown Source)
        at java.net.Socket.<init>(Unknown Source)
        at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.ja
va:253)
        at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:284)
        ... 16 more