server/src/main/java/com/orientechnologies/orient/server/security/authenticator/OServerConfigAuthenticator.java
public OServerUserConfiguration getUser(final String username) {
    OServerUserConfiguration userCfg = null;

    if (getServerConfig() != null) {
      userCfg = getServerConfig().getUser(username);
    }

    return userCfg;
  }
public OServerUserConfiguration getUser(final String username) {
    OServerUserConfiguration userCfg = null;

    if (getServerConfig() != null) {
      userCfg = getServerConfig().getUser(username);
    }

    return userCfg;
  }
OSecurityAuthenticator