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If more than one Active Directory instance is serving directory information, it may be necessary to enable referral following. This is done by modifying the DefaultInitialDirContextFactory bean. Basically you create a map (via the <map> element) and set that as the extraEnvVars property value. The map below has a single key-value pairentry. The key part of the key-value pair entry below matches the REFERRAL constant defined in the Context class. The value part in the key-value pair entry is one of the following: follow, ignore, or throw. (These values are also defined in the javadoc for the REFERRAL constant.
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