If the Domino server is running with a server ID that is password protected, using the method NotesFactory.createSession(null, null, password) in a servlet running in the WebSphere servlet engine to create a local Domino session with the server ID, Domino will prompt for the password (instead of giving access to the local Domino server ID).
As a workaround, remove the password on the Domino server ID file, and use method NotesFactory.createSession(null, null, null).