From 767831329742865561d18ff4dc8f3b5f5e628b6f Mon Sep 17 00:00:00 2001
From: Tianhua Ran <tianhua.ran@liulishuo.com>
Date: Sun, 1 Sep 2019 20:18:32 +0800
Subject: [PATCH] fix: may throw cast exception in FileDownloadThreadPool

---
 .../filedownloader/services/FileDownloadThreadPool.java         | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library/src/main/java/com/liulishuo/filedownloader/services/FileDownloadThreadPool.java b/library/src/main/java/com/liulishuo/filedownloader/services/FileDownloadThreadPool.java
index 8c91b921..d80a236c 100644
--- a/library/src/main/java/com/liulishuo/filedownloader/services/FileDownloadThreadPool.java
+++ b/library/src/main/java/com/liulishuo/filedownloader/services/FileDownloadThreadPool.java
@@ -121,7 +121,7 @@ private synchronized void filterOutNoExist() {
         runnablePool = correctedRunnablePool;
     }
 
-    public boolean isInThreadPool(final int downloadId) {
+    public synchronized boolean isInThreadPool(final int downloadId) {
         final DownloadLaunchRunnable runnable = runnablePool.get(downloadId);
         return runnable != null && runnable.isAlive();
     }