You can use the administrative console to change the values of Java™ virtual machine (JVM) custom properties. To set these custom properties, connect to the administrative console and navigate to the appropriate Java virtual machine custom properties page.
Use this Enterprise JavaBeans (EJB) custom property to expand the variables used in a container-managed persistence (CMP) connection factory Java™ Naming and Directory Interface (JNDI) name.
The EJB Container should allow for the expansion of the CMP connection factory JNDI name when a JNDI name contains a user-defined Application Server variable (although V6.1 does not support the expansion of variables). You need to use this property in order to expand the variables. You can enable or disable expansion. To enable the expansion, the property value is true. To disable, use the value false. The default is false. If the value is true, the EJB container expands a variable found in the CMP connection factory JNDI name. If the value is false, the EJB container does not expand a variable.