Please review the following information from Microsoft about JDBC driver usage with Windows authentication.
The CA SCM r12 Implementation Guide, chapter 5, Installing the Web Interface, section How to prepare for the Web Interface Installation, talks about a known limitation of the SQL Server JDBC driver:
"If your DBMS is SQL Server, the Web Interface uses SQL Server authentication for its database connection, because the SQL Server JDBC driver supports SQL Server authentication only."
Though the above statement is still true for the out of box SQL Server JDBC driver, based on MSDN article MS378428 from Microsoft, it is possible to configure the JDBC driver to support not just SQL Server authentication but Windows authentication as well.
"The JDBC driver supports the use of Type 2 integrated authentication on Windows operating systems through the integratedSecurity connection string property. To use integrated authentication, copy the sqljdbc_auth.dll file to a directory on the Windows system path on the computer where the JDBC driver is installed."
Based on this information, the exact steps to configure the SCM Harweb JDBC driver to connect to SQL Server using Windows authentication is as below:
For any other questions please review the Microsoft MSDN article as well as the SCM Implementation Guide.