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Shutdown L4J cordially if the server stops before it's even started ()

primarily, this allows us to ensure that appenders are flushed, console, log files
before the JVM exits to avoid issues such as error messages disappearing
This commit is contained in:
Shane Freeder 2024-07-29 16:10:53 +01:00
parent e9a408f93f
commit c2b2de43cf

View file

@ -58,6 +58,38 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
// Many servers tend to restart at a fixed time at xx:00 which causes an uneven distribution of requests on the
// bStats backend. To circumvent this problem, we introduce some randomness into the initial and second delay.
diff --git a/src/main/java/io/papermc/paper/util/LogManagerShutdownThread.java b/src/main/java/io/papermc/paper/util/LogManagerShutdownThread.java
new file mode 100644
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
--- /dev/null
+++ b/src/main/java/io/papermc/paper/util/LogManagerShutdownThread.java
@@ -0,0 +0,0 @@
+package io.papermc.paper.util;
+
+public class LogManagerShutdownThread extends Thread {
+
+ static LogManagerShutdownThread INSTANCE = new LogManagerShutdownThread();
+ public static final void hook() {
+ if (INSTANCE == null) {
+ throw new IllegalStateException("Cannot re-hook after being unhooked");
+ }
+ Runtime.getRuntime().addShutdownHook(INSTANCE);
+ }
+
+ public static final void unhook() {
+ Runtime.getRuntime().removeShutdownHook(INSTANCE);
+ INSTANCE = null;
+ }
+
+ private LogManagerShutdownThread() {
+ super("Log4j2 Shutdown Thread");
+ }
+
+ @Override
+ public void run() {
+ org.apache.logging.log4j.LogManager.shutdown();
+ }
+}
diff --git a/src/main/java/net/minecraft/CrashReport.java b/src/main/java/net/minecraft/CrashReport.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/CrashReport.java
@ -70,6 +102,18 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
while (cause instanceof CompletionException && cause.getCause() != null) {
cause = cause.getCause();
}
diff --git a/src/main/java/net/minecraft/server/Main.java b/src/main/java/net/minecraft/server/Main.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/server/Main.java
+++ b/src/main/java/net/minecraft/server/Main.java
@@ -0,0 +0,0 @@ public class Main {
@DontObfuscate
public static void main(final OptionSet optionset) { // CraftBukkit - replaces main(String[] astring)
+ io.papermc.paper.util.LogManagerShutdownThread.hook(); // Paper
SharedConstants.tryDetectVersion();
/* CraftBukkit start - Replace everything
OptionParser optionparser = new OptionParser();
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
@ -93,6 +137,14 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
public static <S extends MinecraftServer> S spin(Function<Thread, S> serverFactory) {
AtomicReference<S> atomicreference = new AtomicReference();
Thread thread = new ca.spottedleaf.moonrise.common.util.TickThread(() -> { // Paper - rewrite chunk system
@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
}
*/
// Paper end
+ io.papermc.paper.util.LogManagerShutdownThread.unhook(); // Paper
Runtime.getRuntime().addShutdownHook(new org.bukkit.craftbukkit.util.ServerShutdownThread(this));
// CraftBukkit end
this.paperConfigurations = services.paperConfigurations(); // Paper - add paper configuration files
@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
// CraftBukkit start
private boolean hasStopped = false;