How to specify SQL Server database instance name on XA datasource in JBoss EAP 6?

Question

Connection properties for XA datasources in JBoss EAP 6 are configured in XA properties tab, eg using the ServerName , DatabaseName and PortNumber properties. How to specify the SQL Server database instance name I want the data source to connect to?

In jtds I use the pattern: jdbc:jtds:sqlserver:// @ServerName / @DatabaseName ;instance= @InstanceName

Answer 1

Apparently the @InstanceName should be specified as a part of @ServerName , as follows:

@ServerName\\\\ @InstanceName

Note the double backslash is necessary while using the Admin Console Add dialog (Properties tab) - it will be automatically converted to single backslash. If a single backslash is entered, it is not possible to add the property at all (there is no warning/error message showed though).