protected JavaMailSender createJavaMailSender() {
JavaMailSender answer = new DefaultJavaMailSender();
if (javaMailProperties != null) {
answer.setJavaMailProperties(javaMailProperties);
} else {
// set default properties if none provided
answer.setJavaMailProperties(createJavaMailProperties());
// add additional properties if provided
if (additionalJavaMailProperties != null) {
answer.getJavaMailProperties().putAll(additionalJavaMailProperties);
}
}
if (host != null) {
answer.setHost(host);
}
if (port >= 0) {
answer.setPort(port);
}
if (username != null) {
answer.setUsername(username);
}
if (password != null) {
answer.setPassword(password);
}
if (protocol != null) {
answer.setProtocol(protocol);
}
if (session != null) {
answer.setSession(session);
} else {
ClassLoader tccl = Thread.currentThread().getContextClassLoader();
try {
if (applicationClassLoader != null) {
Thread.currentThread().setContextClassLoader(applicationClassLoader);
}
// use our authenticator that does no live user interaction but returns the already
// configured username and password
Session session =
Session.getInstance(
answer.getJavaMailProperties(),
new DefaultAuthenticator(getUsername(), getPassword()));
// sets the debug mode of the underlying mail framework
session.setDebug(debugMode);
answer.setSession(session);
} finally {
Thread.currentThread().setContextClassLoader(tccl);
}
}
return answer;
}
