This issue applies to both Agent for IBM WebSphere Application Server 5.1.1 and Agent for IBM WebSphere Application Server 6.0.
An exception message appears in the debug logs for the message mode. The exception message states that the DirectoryManager class cannot be found. The message is issued by the software development kit (SDK) as it searches for an indication of the mode in which it is running: remote or server.
Workaround: You can safely ignore this message.