code: @OverridingMethodsMustInvokeSuper
    protected void setDefaultDerivedValues ()
    {
      if (m_sReceiverAS2KeyAlias == null)
      {
        // No key alias is specified, so use the same as the receiver ID (which
        // may be null)
        m_sReceiverAS2KeyAlias = m_sReceiverAS2ID;
        if (LOGGER.isDebugEnabled ())
          LOGGER.debug ("The receiver AS2 key alias was defaulted to the AS2 receiver ID ('" + m_sReceiverAS2ID + "')");
      }
    }
docs: Certain values can by convention be derived from other values. This happens
  inside this method. There is no need to call this method manually, it is
  called automatically before {@link #verifyContent()} is called.