Method addProvider

app/src/main/java/javax/mail/Session.java:1083–1088

Add a provider to the session. @param provider the provider to add @since JavaMail 1.4

(Provider provider)

     * @since	JavaMail 1.4
     */
    public synchronized void addProvider(Provider provider) {
	providers.add(provider);
	providersByClassName.put(provider.getClassName(), provider);
	if (!providersByProtocol.containsKey(provider.getProtocol()))
	    providersByProtocol.put(provider.getProtocol(), provider);
    }

    // load maps in reverse order of preference so that the preferred
    // map is loaded last since its entries will override the previous ones