Method getTransport

app/src/main/java/javax/mail/Session.java:670–679

Get a Transport object that implements this user's desired Transport protcol. The mail.transport.protocol property specifies the desired protocol. If an appropriate Transport object cannot be obtained, MessagingException is thrown. @return a Transport object @exception NoSuchProvider

()

     * @exception	NoSuchProviderException If the provider is not found.
     */
    public Transport getTransport() throws NoSuchProviderException {
	String prot = getProperty("mail.transport.protocol");
	if (prot != null)
	    return getTransport(prot);
	// if the property isn't set, use the protocol for "rfc822"
	prot = (String)addressMap.get("rfc822");
	if (prot != null)
	    return getTransport(prot);
	return getTransport("smtp");	// if all else fails
    }

    /**
     * Get a Transport object that implements the specified protocol.