Java version warning

arclight-common/src/main/java/io/izzel/arclight/common/ArclightMain.java

@@ -23,15 +23,19 @@ import java.util.jar.Manifest;
 
 public abstract class ArclightMain {
 
+    private static final int MIN_DEPRECATED_VERSION = 60;
+    private static final int MIN_DEPRECATED_JAVA_VERSION = 16;
+
     public void run(String[] args) throws Throwable {
         System.setProperty("java.util.logging.manager", ArclightLazyLogManager.class.getCanonicalName());
         System.setProperty("log4j.jul.LoggerAdapter", "io.izzel.arclight.common.mod.util.log.ArclightLoggerAdapter");
         ArclightLocale.info("i18n.using-language", ArclightConfig.spec().getLocale().getCurrent(), ArclightConfig.spec().getLocale().getFallback());
         this.afterSetup();
-        try { // Java 9 & Java 兼容性
+        try {
             int javaVersion = (int) Float.parseFloat(System.getProperty("java.class.version"));
-            if (javaVersion == 53) {
-                throw new Exception("Only Java 8 and Java 10+ is supported.");
+            if (javaVersion < MIN_DEPRECATED_VERSION) {
+                ArclightLocale.error("java.deprecated", System.getProperty("java.version"), MIN_DEPRECATED_JAVA_VERSION);
+                Thread.sleep(3000);
             }
             Unsafe.ensureClassInitialized(EnumHelper.class);
         } catch (Throwable t) {

arclight-forge-1.16/build.gradle

@@ -30,6 +30,15 @@ arclight {
 
 sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = '1.8'
 
+sourceSets {
+    applaunch {
+        java {
+            compileClasspath += main.output
+            runtimeClasspath += main.output
+        }
+    }
+}
+
 configurations {
     embed
     implementation.extendsFrom(embed)
@@ -97,7 +106,7 @@ processResources {
 
 jar {
     manifest.attributes 'MixinConnector': 'io.izzel.arclight.impl.ArclightConnector_1_16'
-    manifest.attributes 'Main-Class': 'io.izzel.arclight.server.Main_1_16'
+    manifest.attributes 'Main-Class': 'io.izzel.arclight.server.Launcher'
     manifest.attributes 'Implementation-Title': 'Arclight'
     manifest.attributes 'Implementation-Version': "arclight-$minecraftVersion-${project.version}-${getGitHash()}"
     manifest.attributes 'Implementation-Vendor': 'Arclight Team'
@@ -112,6 +121,7 @@ jar {
         exclude "LICENSE.txt"
     }
     from(project(':arclight-common').tasks.jar.outputs.files.collect { it.isDirectory() ? it : zipTree(it) })
+    from sourceSets.applaunch.output.classesDirs
 }
 
 remapSpigotJar {
@@ -128,6 +138,10 @@ compileJava {
     options.encoding = 'UTF-8'
 }
 
+compileApplaunchJava {
+    sourceCompatibility = targetCompatibility = JavaVersion.VERSION_1_6
+}
+
 task srgJar(type: Jar) {
     from(tasks.jar.outputs.files.collect { it.isDirectory() ? it : zipTree(it) }) {
         include 'io/izzel/**'

arclight-forge-1.16/src/applaunch/java/io/izzel/arclight/server/Launcher.java

@@ -0,0 +1,18 @@
+package io.izzel.arclight.server;
+
+public class Launcher {
+
+    private static final int MIN_CLASS_VERSION = 52;
+    private static final int MIN_JAVA_VERSION = 8;
+
+    public static void main(String[] args) throws Throwable {
+        int javaVersion = (int) Float.parseFloat(System.getProperty("java.class.version"));
+        if (javaVersion < MIN_CLASS_VERSION) {
+            System.err.println("Arclight requires Java " + MIN_JAVA_VERSION);
+            System.err.println("Current: " + System.getProperty("java.version"));
+            System.exit(-1);
+            return;
+        }
+        Main_1_16.main(args);
+    }
+}

arclight-forge-1.16/src/main/java/io/izzel/arclight/server/Main_1_16.java

@@ -4,15 +4,15 @@ import io.izzel.arclight.api.ArclightVersion;
 import io.izzel.arclight.common.ArclightMain;
 import io.izzel.arclight.forgeinstaller.ForgeInstaller;
 
-public class Main_1_16 extends ArclightMain {
+public class Main_1_16 {
 
     public static void main(String[] args) throws Throwable {
-        new Main_1_16().run(args);
-    }
-
+        new ArclightMain() {
             @Override
             protected void afterSetup() throws Throwable {
                 ArclightVersion.setVersion(ArclightVersion.v1_16_4);
                 ForgeInstaller.install();
             }
+        }.run(args);
+    }
 }

build.gradle

@@ -1,6 +1,6 @@
 allprojects {
     group 'io.izzel.arclight'
-    version '1.0.18'
+    version '1.0.19-SNAPSHOT'
 
     ext {
         agpVersion = '1.15'

i18n-config/src/main/resources/META-INF/i18n/en_us.conf

@@ -28,6 +28,13 @@ downloader {
   forge-install = "Forge installation is starting, please wait... "
   access-denied = "Access denied for file {0}: {1}"
 }
+java {
+  deprecated = [
+    "You are running an outdated Java version"
+    "Current {0} Recommended {1}"
+    "Current Java will not be supported in future"
+  ]
+}
 
 implementer {
   not-found = "Class not found {}"

i18n-config/src/main/resources/META-INF/i18n/zh_cn.conf

@@ -28,6 +28,13 @@ downloader {
   forge-install = "即将开始 Forge 安装，请等待一段时间"
   access-denied = "没有对 {0} 操作的权限: {1}"
 }
+java {
+  deprecated = [
+    "您正在使用过时的 Java 版本"
+    "当前版本 {0} 推荐使用 {1}"
+    "该版本的 Java 未来将不受支持"
+  ]
+}
 
 implementer {
   not-found = "找不到类 {}"