各位大虾：redhat enterprise 5部署jboss服务链接sqlserver2005发生运行错误
系统运行环境简介
1、一台服务器装linux系统，使用redhat enterprise 5版本，部署jboss服务，链接数据库服务器。
2、另一台服务器装windows2003，安装数据库sqlwhere2005。

下面是系统报错日期，请各位大虾指点一下是驱动的原因还是代码线程存在问题，多谢

2010-06-29 10:26:51,759 WARN [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] Unable to fill pool 
org.jboss.resource.JBossResourceException: Could not create connection; - nested throwable: (com.microsoft.sqlserver.jdbc.SQLServerException: 接收 TDS 预登录响应时发生 I/O 错误。)
at org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:190)
at org.jboss.resource.connectionmanager.InternalManagedConnectionPool.createConnectionEventListener(InternalManagedConnectionPool.java:619)
at org.jboss.resource.connectionmanager.InternalManagedConnectionPool.fillToMin(InternalManagedConnectionPool.java:534)
at org.jboss.resource.connectionmanager.PoolFiller.run(PoolFiller.java:74)
at java.lang.Thread.run(Thread.java:619)
Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: 接收 TDS 预登录响应时发生 I/O 错误。
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(Unknown Source)
at com.microsoft.sqlserver.jdbc.DBComms.Prelogin(Unknown Source)
at com.microsoft.sqlserver.jdbc.DBComms.<init>(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.loginWithoutFailover(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(Unknown Source)
at org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:172)
... 4 more
2010-06-29 12:13:53,861 WARN [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] Unable to fill pool 
org.jboss.resource.JBossResourceException: Could not create connection; - nested throwable: (com.microsoft.sqlserver.jdbc.SQLServerException: 使用 DBComms.receive 方法期间发生异常。操作:Connection reset。上下文:(537) [Thread[JCA PoolFiller,5,jboss], IO:10dd0, Dbc:20567]。PktNum:0。TotalReceived:0。PktSize:4,096。)
at org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:190)
at org.jboss.resource.connectionmanager.InternalManagedConnectionPool.createConnectionEventListener(InternalManagedConnectionPool.java:619)
at org.jboss.resource.connectionmanager.InternalManagedConnectionPool.fillToMin(InternalManagedConnectionPool.java:534)
at org.jboss.resource.connectionmanager.PoolFiller.run(PoolFiller.java:74)
at java.lang.Thread.run(Thread.java:619)

2010-06-29 12:13:53,863 WARN [org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory] Destroying connection that is not valid, due to the following exception: com.microsoft.sqlserver.jdbc.SQLServerConnection@96fdd7
com.microsoft.sqlserver.jdbc.SQLServerException: 使用 DBComms.receive 方法期间发生异常。操作:Connection reset。上下文:(533) [Thread[http-0.0.0.0-8080-2,5,jboss], IO:6fdd7, Dbc:33be4]。PktNum:0。TotalReceived:0。PktSize:4,096。
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(Unknown Source)
at com.microsoft.sqlserver.jdbc.DBComms.receive(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerStatement.doExecuteStatement(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerStatement$StatementExecutionRequest.executeStatement(Unknown Source)
at com.microsoft.sqlserver.jdbc.CancelableRequest.execute(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeRequest(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerStatement.execute(Unknown Source)
at org.jboss.resource.adapter.jdbc.CheckValidConn