SQL Server JDBC Connection times out after upgrade to TIBCO TRA 5.7.4 (JRE 1.6.0_30)

After upgrading to TIBCO BusinessWorks (BW) 5.10 (most likely not related) and TIBCO Runtime Agent (TRA) 5.7.4, JDBC connections using the Microsoft SQL Server JDBC driver (com.microsoft.sqlserver.jdbc.SQLServer - sqljdbc4.jar) times out. This happens for example in the TIBCO Designer when using "Test Connection" on a JDBC Connection.

Note that TRA 5.7.4 includes JRE 1.6.0_30.

Steps to resolve the problem:

1. Make sure that the JDBC driver is in your classpath for both BW and Designer by checking your .tra files (TIBCO_HOME\bw\5.10\bin\bwengine.tra and TIBCO_HOME\designer\5.7\bin\designer.tra). This could be done by dropping the driver .jar in TIBCO_HOME\tpcl\5.7\lib

2. Add the following line to your BW and Designer .tra files:

   java.property.TIBCO_SECURITY_VENDOR=j2se

You may also have to perform the above for other TIBCO software such as Hawk and Administrator, depending on your setup.