Fix MC-151674 Close RegionFiles when they get evicted from cache

https://bugs.mojang.com/browse/MC-151674

Spigot-Server-Patches/0394-Fix-MC-151674-Close-RegionFiles-when-they-get-evicte.patch

@@ -0,0 +1,24 @@
+From dc2630e6c5d7c7668251a1f73d0f35ee01e173bb Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Sun, 12 May 2019 19:25:53 -0700
+Subject: [PATCH] Fix MC-151674 Close RegionFiles when they get evicted from
+ cache
+
+https://bugs.mojang.com/browse/MC-151674
+
+diff --git a/src/main/java/net/minecraft/server/RegionFileCache.java b/src/main/java/net/minecraft/server/RegionFileCache.java
+index d39d49944..5a22b661b 100644
+--- a/src/main/java/net/minecraft/server/RegionFileCache.java
++++ b/src/main/java/net/minecraft/server/RegionFileCache.java
+@@ -56,7 +56,7 @@ public abstract class RegionFileCache implements AutoCloseable {
+             return regionfile;
+         } else {
+             if (this.cache.size() >= PaperConfig.regionFileCacheSize) {
+-                this.cache.removeLast();
++                this.cache.removeLast().close();
+             }
+ 
+             if (!this.a.exists()) {
+-- 
+2.21.0
+