result.addToEnvironment(STARTTLS_PROPERTY, "true");
if (fDn != null)
{
result.addToEnvironment(Context.SECURITY_AUTHENTICATION , "simple");
result.addToEnvironment(Context.SECURITY_PRINCIPAL, fDn);
if (fPwd != null)
{
result.addToEnvironment(Context.SECURITY_CREDENTIALS, fPwd);
}