When configuring a data source using the Oracle JDBC Thin Driver per the instructions in TechNote 18344, the data source fails to verify.
If either ColdFusion MX Updater 3 or higher, or the ColdFusion MX pre-Updater 3 diagnostic JAR is installed, the following error is generated in the ColdFusion Administrator after creating a data source that uses dot notation in the Oracle System Identifier (SID) name in the JDBC URL field:

