From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Nassim Jahnke Date: Wed, 16 Mar 2022 13:58:16 +0100 Subject: [PATCH] Improve java version check Co-Authored-By: MiniDigger diff --git a/src/main/java/org/bukkit/craftbukkit/Main.java b/src/main/java/org/bukkit/craftbukkit/Main.java index c79afabed432ca9094967ae0e48b04133dc4c51b..2badebc0d7954c6d343bfd66dd14dc2d2d4661d7 100644 --- a/src/main/java/org/bukkit/craftbukkit/Main.java +++ b/src/main/java/org/bukkit/craftbukkit/Main.java @@ -200,23 +200,27 @@ public class Main { return; } + // Paper start - better java version checks + boolean skip = Boolean.getBoolean("Paper.IgnoreJavaVersion"); float javaVersion = Float.parseFloat(System.getProperty("java.class.version")); - if (javaVersion < 61.0) { - System.err.println("Unsupported Java detected (" + javaVersion + "). This version of Minecraft requires at least Java 17. Check your Java version with the command 'java -version'."); - return; - } - if (javaVersion > 64.0) { - System.err.println("Unsupported Java detected (" + javaVersion + "). Only up to Java 20 is supported."); + boolean isOldVersion = javaVersion < 61.0; + if (!skip && isOldVersion) { + System.err.println("Unsupported Java detected (" + javaVersion + "). This version of Minecraft requires at least Java 17. Check your Java version with the command 'java -version'. For more info see https://docs.papermc.io/misc/java-install"); return; } String javaVersionName = System.getProperty("java.version"); // J2SE SDK/JRE Version String Naming Convention boolean isPreRelease = javaVersionName.contains("-"); - if (isPreRelease && javaVersion == 61.0) { - System.err.println("Unsupported Java detected (" + javaVersionName + "). You are running an outdated, pre-release version. Only general availability versions of Java are supported. Please update your Java version."); + if (!skip && isPreRelease) { + System.err.println("Unsupported Java detected (" + javaVersionName + "). You are running an unsupported, non official, version. Only general availability versions of Java are supported. Please update your Java version. See https://docs.papermc.io/paper/faq#unsupported-java-detected-what-do-i-do for more information."); return; } + if (skip && (isOldVersion || isPreRelease)) { + System.err.println("Unsupported Java detected ("+ javaVersionName + "), but the check was skipped. Proceed with caution! "); + } + // Paper end - better java version checks + try { // Paper start - Handled by TerminalConsoleAppender /*