From d2f1c0f40d675f5e393017f3d97cfd78ccc4777e Mon Sep 17 00:00:00 2001
From: Mauricio Colli <mauriciocolli@outlook.com>
Date: Wed, 24 Jun 2020 01:45:19 -0300
Subject: [PATCH] [SoundCloud] Fix concurrency issue when getting the client id

---
 .../services/soundcloud/SoundcloudParsingHelper.java          | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/SoundcloudParsingHelper.java b/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/SoundcloudParsingHelper.java
index b8dafd834..761d14a96 100644
--- a/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/SoundcloudParsingHelper.java
+++ b/extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/SoundcloudParsingHelper.java
@@ -43,13 +43,15 @@ public class SoundcloudParsingHelper {
     private SoundcloudParsingHelper() {
     }
 
-    public static String clientId() throws ExtractionException, IOException {
+    public synchronized static String clientId() throws ExtractionException, IOException {
         if (!isNullOrEmpty(clientId)) return clientId;
 
         Downloader dl = NewPipe.getDownloader();
         clientId = HARDCODED_CLIENT_ID;
         if (checkIfHardcodedClientIdIsValid()) {
             return clientId;
+        } else {
+            clientId = null;
         }
 
         final Response download = dl.get("https://soundcloud.com");