From f7bbe82dfb3b90afc6497f12c6e10085c9edfe8c Mon Sep 17 00:00:00 2001
From: Henry Le Grys <henry@legrys.info>
Date: Wed, 31 Mar 2021 19:14:17 +0100
Subject: [PATCH] Fix potential NPE with partial redownloads if connection
 never completes

---
 .../src/main/java/com/skcraft/launcher/util/HttpRequest.java  | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/launcher/src/main/java/com/skcraft/launcher/util/HttpRequest.java b/launcher/src/main/java/com/skcraft/launcher/util/HttpRequest.java
index f8b2dcc..d9da68a 100644
--- a/launcher/src/main/java/com/skcraft/launcher/util/HttpRequest.java
+++ b/launcher/src/main/java/com/skcraft/launcher/util/HttpRequest.java
@@ -352,6 +352,10 @@ public class HttpRequest implements Closeable, ProgressObservable {
     }
 
     public Optional<PartialDownloadInfo> canRetryPartial() {
+        if (conn == null) {
+            return Optional.empty();
+        }
+
         if ("bytes".equals(conn.getHeaderField("Accept-Ranges"))) {
             return Optional.of(new PartialDownloadInfo(contentLength, readBytes));
         }