Allow email addresses to be reused over multiple accounts

[matthewhorridge]

At the moment the relationship between account name and email address is one-to-one. It should be possible to specify the same email address for multiple accounts. Some consideration is needed, because there is some code which looks up user accounts by email address!

edu.stanford.bmir.protege.web.shared.user.UserEmailAlreadyExistsException: User email address already exists: darkoandr@yahoo.com at edu.stanford.bmir.protege.web.server.LocalMetaProjectManager.registerUser(LocalMetaProjectManager.java:100) at edu.stanford.bmir.protege.web.server.AccessPolicyManager.createTemporaryAccountForInvitation(AccessPolicyManager.java:666) at edu.stanford.bmir.protege.web.server.SharingSettingsServiceImplP3Delegate.sendEmailInvitation(SharingSettingsServiceImplP3Delegate.java:206) at edu.stanford.bmir.protege.web.server.SharingSettingsServiceImplP3Delegate.createUsersBySharingSettingMap(SharingSettingsServiceImplP3Delegate.java:186) at edu.stanford.bmir.protege.web.server.SharingSettingsServiceImplP3Delegate.updateSharingSettings(SharingSettingsServiceImplP3Delegate.java:146) at edu.stanford.bmir.protege.web.server.SharingSettingsManager.updateSharingSettings(SharingSettingsManager.java:52) at edu.stanford.bmir.protege.web.server.SharingSettingsServiceImpl.updateSharingSettings(SharingSettingsServiceImpl.java:21)

[matthewhorridge]

We don't allow this as it's a security hazard.