Paper/patches/api/0231-Enable-multi-release-plugin-jars.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Kyle Wood <kyle@denwav.dev>
Date: Fri, 4 Dec 2020 15:53:19 -0800
Subject: [PATCH] Enable multi-release plugin jars


diff --git a/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java b/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java
index 666f182e5cf2f07a2cf6a17b0d28a100b3f0b891..14cdd833bb56186e7cb83e035348f4dc942e4740 100644
--- a/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java
+++ b/src/main/java/org/bukkit/plugin/java/PluginClassLoader.java
@@ -60,7 +60,7 @@ public final class PluginClassLoader extends URLClassLoader implements io.paperm
         this.description = description;
         this.dataFolder = dataFolder;
         this.file = file;
-        this.jar = new JarFile(file);
+        this.jar = new JarFile(file, true, java.util.zip.ZipFile.OPEN_READ, JarFile.runtimeVersion()); // Paper - enable multi-release jars for Java 9+
         this.manifest = jar.getManifest();
         this.url = file.toURI().toURL();
         this.libraryLoader = libraryLoader;