change to kotlin (it works unlike another private project)

build.gradle.kts

@@ -0,0 +1,60 @@
+plugins {
+    kotlin("jvm") version "2.0.0"
+    id("com.github.johnrengelman.shadow") version "8.1.1"
+    id("net.kyori.blossom") version "2.1.0"
+}
+
+group = "moe.jansel"
+version = "1.0-SNAPSHOT"
+
+repositories {
+    mavenCentral()
+    maven {
+        name = "papermc-repo"
+        url = uri("https://repo.papermc.io/repository/maven-public/")
+    }
+    maven {
+        name = "sonatype"
+        url = uri("https://oss.sonatype.org/content/groups/public/")
+    }
+}
+
+
+var ktorVersion = "2.3.11"
+
+dependencies {
+    compileOnly   ("io.papermc.paper:paper-api:1.20.6-R0.1-SNAPSHOT")
+    implementation("org.jetbrains.kotlin:kotlin-stdlib")
+    implementation("org.bstats:bstats-bukkit:3.0.2")
+    implementation("com.google.code.gson:gson:2.11.0")
+    // Ktor
+    implementation("io.ktor:ktor-client-core:$ktorVersion")
+    implementation("io.ktor:ktor-client-cio:$ktorVersion")
+    implementation("io.ktor:ktor-client-content-negotiation:$ktorVersion")
+    implementation("io.ktor:ktor-client-serialization:$ktorVersion")
+    implementation("io.ktor:ktor-serialization-kotlinx-json:$ktorVersion")
+    // Adventure API
+    implementation("net.kyori:adventure-api:4.17.0")
+    implementation("net.kyori:adventure-text-minimessage:4.17.0")
+    implementation("net.kyori:adventure-platform-bukkit:4.3.3")
+}
+
+kotlin {
+    sourceSets["main"].apply {
+        kotlin.srcDir("src/main/kotlin")
+    }
+    jvmToolchain(21)
+    compilerOptions {
+        apiVersion.set(org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0)
+    }
+}
+
+tasks.named("compileKotlin", org.jetbrains.kotlin.gradle.tasks.KotlinCompilationTask::class.java) {
+    compilerOptions {
+        freeCompilerArgs.add("-Xexport-kdoc")
+    }
+}
+
+tasks.shadowJar {
+    relocate("org.bstats", "moe.jansel")
+}