Authentication with SASL

Question

Hello,
I recently installed POSTFIX which uses SASL authentication, I have found javadocs for javax.security.sasl but am unsure how to implement these, does anyone have any experience of doing this?
Can I leave the rest of my smtp code and just alter the authentication bit, or will more need to change?
Any pointers appreciated

Answer 1

I think I have get little bit closer to get SASL authentication work, but now my program throws this kind of exception:
javax.naming.AuthenticationException: SASL authentication failed. Root exception is java.lang.NoSuchMethodError
at com.sun.jndi.ldap.sasl.LdapSasl.saslBind(LdapSasl.java:116)
at java.lang.reflect.Method.invoke(Native Method)
at com.sun.jndi.ldap.LdapClient.saslBind(LdapClient.java:369)
at com.sun.jndi.ldap.LdapClient.authenticate(LdapClient.java:185)
at com.sun.jndi.ldap.LdapCtx.connect(LdapCtx.java:2386)
at com.sun.jndi.ldap.LdapCtx.<init>(LdapCtx.java:239)
at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(LdapCtxFactory.java:74)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:660)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:241)
at javax.naming.InitialContext.init(InitialContext.java:217)
at javax.naming.InitialContext.<init>(InitialContext.java:193)
at javax.naming.directory.InitialDirContext.<init>(InitialDirContext.java:78)
My code (I'm using jdk1.3.1):
import javax.naming.*;
import javax.naming.directory.*;
import java.util.Hashtable;
class DigestTesti {
public static void main(String[] args) {
     Hashtable env = new Hashtable();
     env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
     env.put(Context.PROVIDER_URL, "ldap://000.000.000.000:000");
     env.put(Context.SECURITY_AUTHENTICATION, "DIGEST-MD5");
     env.put(Context.SECURITY_PRINCIPAL, "dn:uid=JDoe,ou=...,o=...,dc=..., dc=...");
     env.put(Context.SECURITY_CREDENTIALS, "...");
     env.put("java.naming.security.sasl.realm", "...");
     try {
     DirContext ctx = new InitialDirContext(env);
     System.out.println(ctx);
     } catch (NamingException e) {
     e.printStackTrace();
What could been wrong with my code?
Regards,
Janne