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Paper/Spigot-Server-Patches/0610-Add-warning-for-servers-not-running-on-Java-11.patch
Aikar a08be1ec7c
[Auto] Updated Upstream (CraftBukkit)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

CraftBukkit Changes:
9294ebbf0 SPIGOT-5877: Add support for Vanilla custom dimensions
2021-04-15 20:47:34 -04:00

81 Zeilen
3.8 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Kyle Wood <demonwav@gmail.com>
Date: Wed, 2 Dec 2020 21:58:45 -0800
Subject: [PATCH] Add warning for servers not running on Java 11
diff --git a/src/main/java/io/papermc/paper/util/PaperJvmChecker.java b/src/main/java/io/papermc/paper/util/PaperJvmChecker.java
new file mode 100644
index 0000000000000000000000000000000000000000..c6ea429819c07e7f4bc257cad73463a030767825
--- /dev/null
+++ b/src/main/java/io/papermc/paper/util/PaperJvmChecker.java
@@ -0,0 +1,48 @@
+package io.papermc.paper.util;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class PaperJvmChecker {
+
+ private static int getJvmVersion() {
+ String javaVersion = System.getProperty("java.version");
+ final Matcher matcher = Pattern.compile("(?:1\\.)?(\\d+)").matcher(javaVersion);
+ if (!matcher.find()) {
+ LogManager.getLogger().warn("Failed to determine Java version; Could not parse: {}", javaVersion);
+ return -1;
+ }
+
+ final String version = matcher.group(1);
+ try {
+ return Integer.parseInt(version);
+ } catch (final NumberFormatException e) {
+ LogManager.getLogger().warn("Failed to determine Java version; Could not parse {} from {}", version, javaVersion, e);
+ return -1;
+ }
+ }
+
+ public static void checkJvm() {
+ if (getJvmVersion() < 11) {
+ final Logger logger = LogManager.getLogger();
+ logger.warn("************************************************************");
+ logger.warn("* WARNING - YOU ARE RUNNING AN OUTDATED VERSION OF JAVA.");
+ logger.warn("* PAPER WILL STOP BEING COMPATIBLE WITH THIS VERSION OF");
+ logger.warn("* JAVA WHEN MINECRAFT 1.17 IS RELEASED.");
+ logger.warn("*");
+ logger.warn("* Please update the version of Java you use to run Paper");
+ logger.warn("* to at least Java 11. When Paper for Minecraft 1.17 is");
+ logger.warn("* released support for versions of Java before 11 will");
+ logger.warn("* be dropped.");
+ logger.warn("*");
+ logger.warn("* Current Java version: {}", System.getProperty("java.version"));
+ logger.warn("*");
+ logger.warn("* Check this forum post for more information: ");
+ logger.warn("* https://papermc.io/java11");
+ logger.warn("************************************************************");
+ }
+ }
+}
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index cd1cd1d4adbe6d304fd7634fa2fe712a0874e189..6ae5dc6fe52fb172bec709d4ab80c624535b8e43 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -181,6 +181,7 @@ import org.bukkit.event.server.ServerLoadEvent;
import co.aikar.timings.MinecraftTimings; // Paper
import org.spigotmc.SlackActivityAccountant; // Spigot
+import io.papermc.paper.util.PaperJvmChecker; // Paper
public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTask> implements IMojangStatistics, ICommandListener, AutoCloseable {
@@ -1075,6 +1076,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
LOGGER.info("Done ({})! For help, type \"help\"", doneTime);
// Paper end
+ PaperJvmChecker.checkJvm(); // Paper jvm version nag
org.spigotmc.WatchdogThread.tick(); // Paper
org.spigotmc.WatchdogThread.hasStarted = true; // Paper
Arrays.fill( recentTps, 20 );