fix-tests-cleanup

src/main/java/auctiora/NotificationService.java

@@ -4,9 +4,9 @@ import javax.mail.Authenticator;
 import javax.mail.Message;
 import javax.mail.PasswordAuthentication;
 import javax.mail.Session;
-import javax.mail.Transport;
 import javax.mail.internet.InternetAddress;
 import javax.mail.internet.MimeMessage;
+import com.sun.mail.smtp.SMTPTransport;
 import lombok.extern.slf4j.Slf4j;
 
 import java.awt.SystemTray;
@@ -79,6 +79,8 @@ public record NotificationService(Config cfg) {
    }
 
    private void sendEmail(String title, String msg, int prio) {
+      SMTPTransport transport = null;
+      boolean sent = false;
       try {
          var props = new Properties();
          props.put("mail.smtp.auth", "true");
@@ -88,6 +90,8 @@ public record NotificationService(Config cfg) {
          props.put("mail.smtp.port", "587");
          props.put("mail.smtp.ssl.trust", "smtp.gmail.com");
          props.put("mail.smtp.ssl.protocols", "TLSv1.2");
+         // Avoid waiting for QUIT reply (prevents "Exception reading response" after successful send)
+         props.put("mail.smtp.quitwait", "false");
 
          // Connection timeouts (configurable; short during tests, longer otherwise)
          int    smtpTimeoutMs = Integer.getInteger("auctiora.smtp.timeout.ms", isUnderTest() ? 200 : 10000);
@@ -97,7 +101,6 @@ public record NotificationService(Config cfg) {
          props.put("mail.smtp.writetimeout", t);
 
          var session = Session.getInstance(props, new Authenticator() {
-            
             @Override
             protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(cfg.smtpUsername(), cfg.smtpPassword());
@@ -116,14 +119,34 @@ public record NotificationService(Config cfg) {
             m.setHeader("Importance", "High");
          }
 
-         Transport.send(m);
+         transport = (SMTPTransport) session.getTransport("smtp");
+         transport.connect("smtp.gmail.com", cfg.smtpUsername(), cfg.smtpPassword());
+         transport.sendMessage(m, m.getAllRecipients());
+         sent = true;
+
          log.info("Email notification sent: {}", title);
+         String resp = transport.getLastServerResponse();
+         if (resp != null) {
+            log.debug("SMTP response: {}", resp);
+         }
       } catch (javax.mail.AuthenticationFailedException e) {
          log.warn("Email authentication failed - check Gmail App Password: {}", e.getMessage());
       } catch (javax.mail.MessagingException e) {
+         if (sent) {
+            // Message accepted by server; subsequent connection close caused exception
+            log.info("Email sent (connection closed early): {}", e.getMessage());
+         } else {
             log.warn("Email connection failed (network/firewall issue?): {}", e.getMessage());
+         }
       } catch (Exception e) {
          log.warn("Email failed: {}", e.getMessage());
+      } finally {
+         if (transport != null) {
+            try {
+               transport.close();
+            } catch (Exception ignored) {
+            }
+         }
       }
    }