Prevent concurrency issues with SkinProvider#requestedSkins

There is a small potential here to return null if containsKey runs before remove and then get is called.
This commit is contained in:
Camotoy 2021-09-10 16:32:09 -04:00
parent b69cc8eba5
commit 3632ebda8b
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@ -163,7 +163,11 @@ public class SkinProvider {
public static CompletableFuture<Skin> requestSkin(UUID playerId, String textureUrl, boolean newThread) {
if (textureUrl == null || textureUrl.isEmpty()) return CompletableFuture.completedFuture(EMPTY_SKIN);
if (requestedSkins.containsKey(textureUrl)) return requestedSkins.get(textureUrl); // already requested
CompletableFuture<Skin> requestedSkin = requestedSkins.get(textureUrl);
if (requestedSkin != null) {
// already requested
return requestedSkin;
}
Skin cachedSkin = getCachedSkin(textureUrl);
if (cachedSkin != null) {