java.lang.ClassNotFoundException: No ClassLoaders found for: com.microsoft.sqlserver.jdbc.SQLServerDriver

Today I was making a JDBC call to an application running on JBoss and using MS SQL Server 2005 Express Edition (SP 4), when I received the below error.

Exception: Could not create connection; - nested throwable: (org.jboss.resource.JBossResourceException: Failed to register driver for: com.microsoft.sqlserver.jdbc.SQLServerDriver; - nested throwable: (java.lang.ClassNotFoundException: No ClassLoaders found for: com.microsoft.sqlserver.jdbc.SQLServerDriver)); - nested throwable: (org.jboss.resource.JBossResourceException: Could not create connection; - nested throwable: (org.jboss.resource.JBossResourceException: Failed to register driver for: com.microsoft.sqlserver.jdbc.SQLServerDriver; - nested throwable: (java.lang.ClassNotFoundException: No ClassLoaders found for: com.microsoft.sqlserver.jdbc.SQLServerDriver)))

It meant that JBoss didn't have the JDBC driver jar installed.

Microsoft has a page for JDBC Drivers, which includes a link to download Microsoft SQL Server JDBC Driver 3.0. Download and run sqljdbc_3.0.1301.101_enu.exe (which is just a ZIP archive). Copy the driver jar: Microsoft SQL Server JDBC Driver 3.0\sqljdbc_3.0\enu\sqljdbc4.jar to C:\Adobe\Adobe LiveCycle ES2\jboss\server\lc_turnkey\lib, then restart JBoss to make sure the changes take effect.

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