JNI Error - libGDX ApplicationListener not found

Question

So I've just exported my project as a JAR-file. I'm only making a desktop application. When trying to run the program i get
"A JNI error has occurred.." Not much else there. However, in the command prompt it is revealed that

"Exception in thread "main" java.lang.NoClassDefFoundError: com/badlogic/gdx/ApplicationListener"

So the libGDX ApplicationListener can't be found? It works perfectly when compiling/running in Eclipse.

I'm using:
Windows 7 Ultimate
Eclipse Oxygen.3a
Gradle 4.4.1
java JRE version 1.8.0_241
java JDK version 1.8.0_241

Environment variables:
PATH_HOME: "C:\Program Files\Java\jdk1.8.0_241"
var: "C:\Program Files\Java\jdk1.8.0_241\bin"
Path: "C:\Program Files (x86)\Common Files\Oracle\Java\javapath; C:\ProgramData\Oracle\Java\javapath; C:\Windows\system32; C:\Windows; C:\Windows\System32\Wbem; C:\Windows\System32\WindowsPowerShell\v1.0\; C:\Gradle\gradle-4.4.1\bin"

Main class

public class DesktopLauncher
{
    public static boolean rebuildAtlas = true;
    public static boolean drawDebugOutline = true;

    public static void main (String[] arg)
    {
        // Build Texture Atlases
        if (rebuildAtlas) {
            Settings settings = new Settings();
            settings.maxWidth = 1024;
            settings.maxHeight = 1024;
            settings.combineSubdirectories = true;

            // Pack images in "textures" folder
            TexturePacker.process("assets/textures", "assets/atlas", "textures.atlas");

        }   

        LwjglApplicationConfiguration cfg = new LwjglApplicationConfiguration();

        cfg.title = "TI Helper";
        cfg.useGL30 = false;
        cfg.width = Cn.RESOLUTION_WIDTH;
        cfg.height = Cn.RESOLUTION_HEIGHT;
        cfg.fullscreen = true;

        new LwjglApplication(new ti_app(), cfg);
    }
}

Desktop build.gradle

apply plugin: "java"

sourceCompatibility = 1.8
sourceSets.main.java.srcDirs = [ "src/" ]
sourceSets.main.resources.srcDirs = ["../core/assets"]

project.ext.mainClassName = "com.lf.desktop.DesktopLauncher"
project.ext.assetsDir = new File("../core/assets")

task run(dependsOn: classes, type: JavaExec) {
    main = project.mainClassName
    classpath = sourceSets.main.runtimeClasspath
    standardInput = System.in
    workingDir = project.assetsDir
    ignoreExitValue = true
}

task debug(dependsOn: classes, type: JavaExec) {
    main = project.mainClassName
    classpath = sourceSets.main.runtimeClasspath
    standardInput = System.in
    workingDir = project.assetsDir
    ignoreExitValue = true
    debug = true
}

task dist(type: Jar) {
    manifest {
        attributes 'Main-Class': project.mainClassName
    }
    dependsOn configurations.runtimeClasspath
    from {
        configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) }
    }
    with jar
}

dist.dependsOn classes

Core build.gradle

apply plugin: "java"

sourceCompatibility = 1.8
[compileJava, compileTestJava]*.options*.encoding = 'UTF-8'

sourceSets.main.java.srcDirs = [ "src/" ]

Workspace build.gradle

buildscript {

    repositories {
        mavenLocal()
        mavenCentral()
        maven { url "https://plugins.gradle.org/m2/" }
        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
        jcenter()
        google()
    }
    dependencies {

    }
}

allprojects {
    apply plugin: "eclipse"
    version = '1.0'
    ext {
        appName = "TIHelper"
        gdxVersion = '1.9.10'
        roboVMVersion = '2.3.8'
        box2DLightsVersion = '1.4'
        ashleyVersion = '1.7.0'
        aiVersion = '1.8.0'
    }

    repositories {
        mavenLocal()
        mavenCentral()
        jcenter()
        google()
        maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
        maven { url "https://oss.sonatype.org/content/repositories/releases/" }
    }
}

project(":desktop") {
    apply plugin: "java-library"

    dependencies {
        implementation project(":core")
        api "com.badlogicgames.gdx:gdx-backend-lwjgl:$gdxVersion"
        api "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-desktop"
        api "com.badlogicgames.gdx:gdx-box2d-platform:$gdxVersion:natives-desktop"
        api "com.badlogicgames.gdx:gdx-tools:$gdxVersion"
        api "com.badlogicgames.gdx:gdx-freetype-platform:$gdxVersion:natives-desktop"
        api "com.badlogicgames.gdx:gdx-bullet-platform:$gdxVersion:natives-desktop"  
    }
}

project(":core") {
    apply plugin: "java-library"

    dependencies {
        api "com.badlogicgames.gdx:gdx:$gdxVersion"
        api "com.badlogicgames.gdx:gdx-box2d:$gdxVersion"
        api "com.badlogicgames.gdx:gdx-freetype:$gdxVersion"
        api "com.badlogicgames.gdx:gdx-bullet:$gdxVersion"
        api "com.badlogicgames.box2dlights:box2dlights:$box2DLightsVersion"
        api "com.badlogicgames.gdx:gdx-ai:$aiVersion"
        api "net.dermetfan.libgdx-utils:libgdx-utils:0.13.4"
        api "net.dermetfan.libgdx-utils:libgdx-utils-box2d:0.13.4"
        api "com.badlogicgames.ashley:ashley:$ashleyVersion"
    }
}

Singular unsettling tales also suggests I could be missing some sort of native JAR-file (gdx-native.jar or something like that) among my external dependencies

But those topics where years of age so I guess I have it, it's just named "gdx-platform-1.9.10-natives-desktop.jar" nowadays. Or is the problem related to the fact that the project says Native library location: (none)? I'm kinda lost here I must say. Are the libGDX jars not exported?

JNI Error - libGDX ApplicationListener not found

0 Answers