SQL Process locked

I faced the same problem which is having the deadlocks problem in target client SQL Server.

  1. The locks were happened in target client SQL Server which there are many processes are locked by webMethods request SQL statement.
  2. No. The JDBC adapter service is not hanging but due to the locks in SQL server, it slow down the SQL Server performance.
  3. The JDBC Connection minimum pool size is 0 and maximum pool size is 100
  4. It does not happen to each call to SQL Server.
  5. 6.5 Integration Server
  6. Windows 2000
  7. Java Version 1.4.2

May you please give me some guidance on why there are a lot of Processes are being locks by webMethods requested sql statement? And how to solve this problem? Is there any batch or fixed for this issue?