Weblogic Issue - java.sql.SQLException: Io exception: Got minus one from a read call

  are having an issue related to Web-logic JDBC Issue. We are getting below error from the Database and the database doesn't have any problem with the connectivity.

What we have observed is when it reaches maximum process , it is throwing this error, when we checked most of them are inactive connections. We have 5 managed Servers (5*32 (Maximum Capacity))

<2010-08-17 11:06:42,794> <OracleConnectionImpl:ERROR> ****************************** ************ 

<2010-08-17 11:06:42,794> <OracleConnectionImpl:ERROR> This should never happen unless network is down or firewall breaks active connection 

<2010-08-17 11:06:42,794> <OracleConnectionImpl:ERROR> java.sql.SQLException: Io exception: Got minus one from a read call 

<2010-08-17 11:06:42,794> <OracleConnectionImpl:ERROR> ****************************** ************ 

java.sql.SQLException: Io exception: Got minus one from a read call