fix: npe in FileDownloadThreadPool

Tianhua Ran · Tianhua Ran · commit 66814c65698c · 2019-02-01T23:05:03.000+08:00
Closes lingochamp#744
diff --git a/library/src/main/java/com/liulishuo/filedownloader/services/FileDownloadThreadPool.java b/library/src/main/java/com/liulishuo/filedownloader/services/FileDownloadThreadPool.java
@@ -114,7 +114,7 @@ private synchronized void filterOutNoExist() {
         for (int i = 0; i < size; i++) {
             final int key = runnablePool.keyAt(i);
             final DownloadLaunchRunnable runnable = runnablePool.get(key);
-            if (runnable.isAlive()) {
+            if (runnable != null && runnable.isAlive()) {
                 correctedRunnablePool.put(key, runnable);
             }
         }

Original file line number	Diff line number	Diff line change
`@@ -114,7 +114,7 @@ private synchronized void filterOutNoExist() {`
`114`	`114`	`for (int i = 0; i < size; i++) {`
`115`	`115`	`final int key = runnablePool.keyAt(i);`
`116`	`116`	`final DownloadLaunchRunnable runnable = runnablePool.get(key);`
`117`		`- if (runnable.isAlive()) {`
	`117`	`+ if (runnable != null && runnable.isAlive()) {`
`118`	`118`	`correctedRunnablePool.put(key, runnable);`
`119`	`119`	`}`
`120`	`120`	`}`