2024-04-12 21:37:00 +02:00
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Thu, 11 Apr 2024 16:37:44 +0100
Subject: [PATCH] Fix premature player kicks on shutdown
When the server is stopping, the default execution handler method will throw a
RejectedExecutionException in order to prevent further execution, this causes
us to lose the actual kick reason. To mitigate this, we'll use a seperate marked
class in order to gracefully ignore these.
diff --git a/src/main/java/io/papermc/paper/util/ServerStopRejectedExecutionException.java b/src/main/java/io/papermc/paper/util/ServerStopRejectedExecutionException.java
new file mode 100644
index 0000000000000000000000000000000000000000..2c5cd77103c5a33d4349ab6b9ee2d8378bb60eb4
--- /dev/null
+++ b/src/main/java/io/papermc/paper/util/ServerStopRejectedExecutionException.java
@@ -0,0 +1,20 @@
+package io.papermc.paper.util;
+
+import java.util.concurrent.RejectedExecutionException;
+
+public class ServerStopRejectedExecutionException extends RejectedExecutionException {
+ public ServerStopRejectedExecutionException() {
+ }
+
+ public ServerStopRejectedExecutionException(final String message) {
+ super(message);
+ }
+
+ public ServerStopRejectedExecutionException(final String message, final Throwable cause) {
+ super(message, cause);
+ }
+
+ public ServerStopRejectedExecutionException(final Throwable cause) {
+ super(cause);
+ }
+}
diff --git a/src/main/java/net/minecraft/network/Connection.java b/src/main/java/net/minecraft/network/Connection.java
2024-06-14 05:41:44 +02:00
index 4d9f1fc884050993287adfa4578a87da710623fb..a8dfe7a4b3d01bf75587be078f471d1ef1d7a667 100644
2024-04-12 21:37:00 +02:00
--- a/src/main/java/net/minecraft/network/Connection.java
+++ b/src/main/java/net/minecraft/network/Connection.java
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@@ -285,6 +285,7 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
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Connection.genericsFtw(packet, packetlistener);
} catch (RunningOnDifferentThreadException cancelledpackethandleexception) {
;
+ } catch (io.papermc.paper.util.ServerStopRejectedExecutionException ignored) { // Paper - do not prematurely disconnect players on stop
} catch (RejectedExecutionException rejectedexecutionexception) {
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this.disconnect((Component) Component.translatable("multiplayer.disconnect.server_shutdown"));
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} catch (ClassCastException classcastexception) {
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
Rework async chunk api implementation
Firstly, the old methods all routed to the CompletableFuture method.
However, the CF method could not guarantee that if the caller
was off-main that the future would be "completed" on-main. Since
the callback methods used the CF one, this meant that the callback
methods did not guarantee that the callbacks were to be called on
the main thread.
Now, all methods route to getChunkAtAsync(x, z, gen, urgent, cb)
so that the methods with the callback are guaranteed to invoke
the callback on the main thread. The CF behavior remains unchanged;
it may still appear to complete on main if invoked off-main.
Secondly, remove the scheduleOnMain invocation in the async
chunk completion. This unnecessarily delays the callback
by 1 tick.
Thirdly, add getChunksAtAsync(minX, minZ, maxX, maxZ, ...) which
will load chunks within an area. This method is provided as a helper
as keeping all chunks loaded within an area can be complicated to
implement for plugins (due to the lacking ticket API), and is
already implemented internally anyways.
Fourthly, remove the ticket addition that occured with getChunkAt
and getChunkAtAsync. The ticket addition may delay the unloading
of the chunk unnecessarily. It also fixes a very rare timing bug
where the future/callback would be completed after the chunk
unloads.
2024-11-19 07:34:32 +01:00
index 3fc8e626bc66f3cf32d165099ed7a6e4300e8146..741b5ba321d9bd854afb9b54f0e23c739c7f929c 100644
2024-04-12 21:37:00 +02:00
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
2024-10-27 18:11:15 +01:00
@@ -2127,7 +2127,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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@Override
public void executeIfPossible(Runnable runnable) {
if (this.isStopped()) {
- throw new RejectedExecutionException("Server already shutting down");
+ throw new io.papermc.paper.util.ServerStopRejectedExecutionException("Server already shutting down"); // Paper - do not prematurely disconnect players on stop
} else {
super.executeIfPossible(runnable);
}