From b25215029892894e7daa50294b601a0cb12db7f3 Mon Sep 17 00:00:00 2001
From: rusefi <rusefillc@gmail.com>
Date: Fri, 15 May 2020 01:10:46 -0400
Subject: [PATCH] progress

---
 java_console/ui/src/com/rusefi/autodetect/PortDetector.java | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/java_console/ui/src/com/rusefi/autodetect/PortDetector.java b/java_console/ui/src/com/rusefi/autodetect/PortDetector.java
index b7ccd13ae9..ca44850140 100644
--- a/java_console/ui/src/com/rusefi/autodetect/PortDetector.java
+++ b/java_console/ui/src/com/rusefi/autodetect/PortDetector.java
@@ -5,6 +5,7 @@ import org.jetbrains.annotations.Nullable;
 
 import javax.swing.*;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
@@ -19,6 +20,11 @@ public class PortDetector {
      */
     public static String autoDetectSerial() {
         String[] serialPorts = SerialPortList.getPortNames();
+        if (serialPorts.length == 0) {
+            System.err.println("No serial ports detected");
+            return null;
+        }
+        System.out.printf("Trying " + Arrays.toString(serialPorts));
         List<Thread> serialFinder = new ArrayList<>();
         CountDownLatch portFound = new CountDownLatch(1);
         AtomicReference<String> result = new AtomicReference<>();