Add API MinecraftServer#isStopping (#3129)

LICENSE.md

@@ -40,5 +40,6 @@ MicleBrick <miclebrick@outlook.com>
 Trigary <trigary0@gmail.com>
 rickyboy320 <rickw320@hotmail.com>
 DoNotSpamPls <7570108+DoNotSpamPls@users.noreply.github.com>
+Josh Roy <10731363+JRoy@users.noreply.github.com>
 Robert Norman <spottedleaf@spottedleaf.dev>, <Spottedleaf@users.noreply.github.com>
 ```

Spigot-API-Patches/Expose-MinecraftServer-isRunning.patch

@@ -0,0 +1,45 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Josh Roy <10731363+JRoy@users.noreply.github.com>
+Date: Fri, 10 Apr 2020 21:24:35 -0400
+Subject: [PATCH] Expose MinecraftServer#isRunning
+
+This allows for plugins to detect if the server is actually turning off in onDisable rather than just plugins reloading.
+
+diff --git a/src/main/java/org/bukkit/Bukkit.java b/src/main/java/org/bukkit/Bukkit.java
+index b9973406..dda12412 100644
+--- a/src/main/java/org/bukkit/Bukkit.java
++++ b/src/main/java/org/bukkit/Bukkit.java
+@@ -0,0 +0,0 @@ public final class Bukkit {
+     public static int getCurrentTick() {
+         return server.getCurrentTick();
+     }
++
++    /**
++     * Checks if the server is in the process of being shutdown.
++     *
++     * @return true if server is in the process of being shutdown
++     */
++    public static boolean isStopping() {
++        return server.isStopping();
++    }
+     // Paper end
+ 
+     @NotNull
+diff --git a/src/main/java/org/bukkit/Server.java b/src/main/java/org/bukkit/Server.java
+index 80f9abdc..5758ae79 100644
+--- a/src/main/java/org/bukkit/Server.java
++++ b/src/main/java/org/bukkit/Server.java
+@@ -0,0 +0,0 @@ public interface Server extends PluginMessageRecipient {
+      * @return Current tick
+      */
+     int getCurrentTick();
++
++    /**
++     * Checks if the server is in the process of being shutdown.
++     *
++     * @return true if server is in the process of being shutdown
++     */
++    boolean isStopping();
+     // Paper end
+ }
+--

Spigot-Server-Patches/Expose-MinecraftServer-isRunning.patch

@@ -0,0 +1,23 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Josh Roy <10731363+JRoy@users.noreply.github.com>
+Date: Fri, 10 Apr 2020 21:24:12 -0400
+Subject: [PATCH] Expose MinecraftServer#isRunning
+
+This allows for plugins to detect if the server is actually turning off in onDisable rather than just plugins reloading.
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+index b9a398bc5..32121e87b 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+@@ -0,0 +0,0 @@ public final class CraftServer implements Server {
+     public int getCurrentTick() {
+         return net.minecraft.server.MinecraftServer.currentTick;
+     }
++
++    @Override
++    public boolean isStopping() {
++        return !net.minecraft.server.MinecraftServer.getServer().isRunning();
++    }
+     // Paper end
+ }
+--