Cursed Java 17 compatibility

build.gradle

@@ -4,10 +4,17 @@ plugins {
     id "net.kyori.blossom" version "1.3.1"
 }
 
+sourceSets {
+    java17compat
+}
+
 java.toolchain.languageVersion = JavaLanguageVersion.of(17)
-compileJava.sourceCompatibility = JavaVersion.VERSION_1_8
-compileJava.targetCompatibility = JavaVersion.VERSION_1_8
-compileJava.options.encoding = compileTestJava.options.encoding = javadoc.options.encoding = "UTF-8"
+[compileJava, compileTestJava, compileJava17compatJava].each {
+    it.options.encoding = "UTF-8"
+    it.sourceCompatibility = JavaVersion.VERSION_1_8
+    it.targetCompatibility = JavaVersion.VERSION_1_8
+}
+javadoc.options.encoding = "UTF-8"
 
 group = project.maven_group
 archivesBaseName = project.maven_name
@@ -50,6 +57,8 @@ repositories {
 }
 
 dependencies {
+    compileOnly sourceSets.java17compat.output
+
     include "com.viaversion:viaversion:4.5.2-SNAPSHOT"
     include("com.viaversion:viabackwards-common:4.5.2-SNAPSHOT") {
         exclude group: "com.viaversion", module: "viaversion"

src/java17compat/java/java/lang/Record.java

@@ -0,0 +1,37 @@
+/*
+ * This file is part of ViaProxy - https://github.com/RaphiMC/ViaProxy
+ * Copyright (C) 2023 RK_01/RaphiMC and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package java.lang;
+
+/**
+ * Dummy class to make IntelliJ able to access records in Java 8 code
+ */
+public abstract class Record {
+
+    protected Record() {
+    }
+
+    @Override
+    public abstract boolean equals(Object obj);
+
+    @Override
+    public abstract int hashCode();
+
+    @Override
+    public abstract String toString();
+
+}