Facing issue with SMTP gmail while sending mail using jakarta email throwing jakarta.mail.MessagingException: Could not convert socket to tls

When sending mail using Jakarta email throwing below exception

Using these dependencies jakarta.activation-2.0.1.jar jakarta.mail-2.0.2

jakarta.mail.MessagingException: Could not convert socket to TLS;
nested exception is: java.net.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond at com.sun.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:2140) at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:734) at jakarta.mail.Service.connect(Service.java:364) at jakarta.mail.Service.connect(Service.java:222) at jakarta.mail.Service.connect(Service.java:171) at jakarta.mail.Transport.send0(Transport.java:230) at jakarta.mail.Transport.send(Transport.java:100) at test.GmailSSLTest.main(GmailSSLTest.java:44)

Tried below code in local to send mail using jakarta email using port 587, but its throwing above mentioned exception

package test; import jakarta.mail.*; import jakarta.mail.internet.*; import java.util.Properties; public class GmailTest { public static void main(String[] args) throws Exception { Properties props = new Properties(); props.put("mail.smtp.host", "smtp.gmail.com"); props.put("mail.smtp.port", "587"); props.put("mail.smtp.auth", "true"); props.put("mail.smtp.starttls.enable", "true"); props.put("mail.smtp.starttls.required", "true"); props.put("mail.smtp.ssl.enable", "false"); props.put("mail.smtp.ssl.protocols", "TLSv1.2"); props.put("mail.debug", "true"); Session session = Session.getInstance(props, new Authenticator() { @Override protected PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication( "*****@gmail.com", "******" ); } }); Message msg = new MimeMessage(session); msg.setFrom(new InternetAddress("*****@gmail.com")); msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse("*****@gmail.com")); msg.setSubject("Test mail"); msg.setText("Hello from Jakarta Mail via Gmail 587 STARTTLS!"); Transport.send(msg); System.out.println("Message sent!"); } }