Add shadow plugin to create uber JAR

build.gradle.kts

@@ -2,7 +2,9 @@ plugins {
     alias(libs.plugins.kotlin.jvm)
     alias(libs.plugins.kotlin.serialization)
     alias(libs.plugins.detekt)
+    alias(libs.plugins.shadow)
     alias(libs.plugins.jfx)
+    java
 }
 
 group = "com.marvinelsen"
@@ -55,3 +57,10 @@ detekt {
     allRules = false
     autoCorrect = true
 }
+
+tasks.jar {
+    manifest {
+        duplicatesStrategy = DuplicatesStrategy.EXCLUDE
+        attributes["Main-Class"] = "com.marvinelsen.willow.MainKt"
+    }
+}

gradle/libs.versions.toml

@@ -1,6 +1,7 @@
 [versions]
 kotlin = "2.0.20"
 detekt = "1.23.7"
+shadow = "8.3.5"
 jfx-plugin = "0.1.0"
 javafx = "23"
 
@@ -50,4 +51,8 @@ kotlin-serialization = { id = "org.jetbrains.kotlin.plugin.serialization", versi
 # See: https://detekt.dev
 detekt = { id = "io.gitlab.arturbosch.detekt", version.ref = "detekt" }
 
+# Gradle Shadow
+# See: https://gradleup.com/shadow/
+shadow = { id = "com.gradleup.shadow", version.ref = "shadow" }
+
 jfx = { id = "org.openjfx.javafxplugin", version.ref = "jfx-plugin" }

src/main/kotlin/com/marvinelsen/willow/Main.kt

@@ -0,0 +1,5 @@
+package com.marvinelsen.willow
+
+fun main(args: Array<String>) {
+    actualMain(args)
+}

src/main/kotlin/com/marvinelsen/willow/WillowApplication.kt

@@ -85,6 +85,6 @@ class WillowApplication : Application() {
 }
 
 @Suppress("SpreadOperator")
-fun main(args: Array<String>) {
+fun actualMain(args: Array<String>) {
     Application.launch(WillowApplication::class.java, *args)
 }