Smack's connection to Google XMPP service (gtalk) throws "SASLError using PLAIN: not-authorized"

I am trying to connect to gmail using the SMACK API but I am getting the following error and I have been stuck for the last two days.

Exception in thread "main" org.jivesoftware.smack.sasl.SASLErrorException: SASLError using PLAIN: not-authorized
at org.jivesoftware.smack.SASLAuthentication.authenticate(SASLAuthentication.java:348)
at org.jivesoftware.smack.tcp.XMPPTCPConnection.login(XMPPTCPConnection.java:244)
at org.jivesoftware.smack.XMPPConnection.login(XMPPConnection.java:442)

      

I am using smack 4.0.3 jars and Java 7. gmail is not blocked on my office network. I am tired of all the suggestions offered in the forums.

1. setting SASLMechanism to PLAIN / DIGEST-MD5.   
2. adding the Thread.sleep delay after connect.  
3. by setting the dummy SSLSocketFactory. 
4. removing the domain name from user name. 

      

Below is the code I am trying to follow.

public class JabberExample {
public static void main(String[] args) throws Exception{

    XMPPTCPConnection con = new XMPPTCPConnection("gmail.com");
    SASLAuthentication.supportSASLMechanism("PLAIN",0);

    con.connect();
    con.login("username", "password");

    Chat chat = ChatManager.getInstanceFor(con).createChat("chatusernam@gmail.com", new MessageListener() {
         public void processMessage(Chat chat, Message message) {
             System.out.println("Received message: " + message);
         }
     });

    chat.sendMessage("Message..!!");

     con.disconnect();
}

      

}

Hope I have suggestions and help.

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1 answer


Google recently switched to the inability to use PLAIN and similar methods in their accounts - https://support.google.com/accounts/answer/6010255 .



If you want to use such auth mechanisms, your account will need to enable them - https://www.google.com/settings/security/lesssecureapps

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