@Nullable
  public IUser getUserOfEmailAddressIgnoreCase (@Nullable final String sEmailAddress)
  {
    if (StringHelper.hasNoText (sEmailAddress))
      return null;

    return findFirst (x -> sEmailAddress.equalsIgnoreCase (x.getEmailAddress ()));
  }
@ Nullable public IUser getUserOfEmailAddressIgnoreCase ( @ Nullable final String sEmailAddress ) { if ( StringHelper . hasNoText ( sEmailAddress ) ) return null ; return findFirst ( x -> sEmailAddress . equalsIgnoreCase ( x . getEmailAddress ( ) ) ) ; }
Get the user with the specified email address

@param sEmailAddress
The email address to be checked. May be <code>null</code>.
@return <code>null</code> if no such user exists
@see #getUserOfEmailAddress(String)
@since 8.1.3