Unable to launch the application/Application Error [Solved]

[Sappiro 33]

Edit:
Switched to .exe
Problem solved.


Using JNLP file to start the wurm.
Running stops on the window I mentioned in the title, client window doesn't show.
Details in the Error window are:

Launch File tab:

Spoiler

<?xml version="1.0" encoding="utf-8"?>
<jnlp
        spec="1.0+"
        codebase="http://client.wurmonline.com//client/"
        href="wurmclient.jnlp">
    <information>
                    <title>Wurm Online [Live]</title>
                <vendor>CodeClub AB</vendor>
        <homepage href="http://www.wurmonline.com" />
        <description>Wurm Online Client</description>
        <icon href="wurm_icon_128.png" width="128" height="128" />
        <icon href="wurm_icon_64.png" width="64" height="64" />
        <icon href="wurm_icon_32.png" width="32" height="32" />
        <icon href="wurm_icon_16.png" width="16" height="16" />
        <icon kind="splash" href="splash.gif" />
        <shortcut online="true">
            <desktop />
            <menu submenu="Wurm Online" />
        </shortcut>
    </information>
    <update check="timeout" policy="always" />
    <security>
        <all-permissions />
    </security>
    <resources>
        <j2se
                href="http://java.sun.com/products/autodl/j2se"
                version="1.8+"
                            java-vm-args="-XX:+UseG1GC -XX:MaxGCPauseMillis=8 -XX:+UseStringDeduplication"
                                        initial-heap-size="512m"
                                />
        <property name="sun.java2d.noddraw" value="true" />
            
    <property name="jnlp.versionEnabled" value="true" />
    <jar href="libraries-live/wurm-client-small.jar" version="4.2.43" main="true"/>
    <jar href="libraries-live/cssbox.jar" version="4.15"/>
    <jar href="libraries-live/nekohtml.jar" version="1.9.22"/>
    <jar href="libraries-live/xercesImpl.jar" version="2.12.0"/>
    <jar href="libraries-live/xml-apis.jar" version="1.4.01"/>
    <jar href="libraries-live/slf4j-api.jar" version="1.7.25"/>
    <jar href="libraries-live/jstyleparser.jar" version="3.3"/>
    <jar href="libraries-live/antlr4-runtime.jar" version="4.5.3"/>
    <jar href="libraries-live/unbescape.jar" version="1.1.6.RELEASE"/>
    <jar href="libraries-live/httpclient.jar" version="4.5.3"/>
    <jar href="libraries-live/httpcore.jar" version="4.4.6"/>
    <jar href="libraries-live/commons-logging.jar" version="1.2"/>
    <jar href="libraries-live/commons-codec.jar" version="1.9"/>
    <jar href="libraries-live/pngdecoder.jar" version="1.0"/>
    <jar href="libraries-live/irclib.jar" version="1.10"/>
    <jar href="libraries-live/lwjgl.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-opengl.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-openal.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-nanovg.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-glfw.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-nuklear.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-stb.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-natives-windows.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-opengl-natives-windows.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-openal-natives-windows.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-nanovg-natives-windows.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-glfw-natives-windows.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-nuklear-natives-windows.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-stb-natives-windows.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-natives-macos.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-opengl-natives-macos.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-openal-natives-macos.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-nanovg-natives-macos.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-glfw-natives-macos.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-nuklear-natives-macos.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-stb-natives-macos.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-natives-linux.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-opengl-natives-linux.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-openal-natives-linux.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-nanovg-natives-linux.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-glfw-natives-linux.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-nuklear-natives-linux.jar" version="3.2.3"/>
    <jar href="libraries-live/lwjgl-stb-natives-linux.jar" version="3.2.3"/>
    <jar href="libraries-live/jorbis.jar" version="0.0.17"/>
    <jar href="libraries-live/vecmath.jar" version="1.5.2"/>
    <jar href="libraries-live/lwjgl-ovr.jar" version="3.2.3"/>
    <jar href="libraries-live/jbullet.jar" version="1.0.0"/>
    <jar href="libraries-live/jzipupdate.jar" version="0.9.1"/>
    <jar href="libraries-live/joxsi.jar" version="1.0.0"/>
    <jar href="libraries-live/jme-collada-binding.jar" version="1.0.0"/>
    <jar href="libraries-live/jsquish.jar" version="2.0.0"/>
    <jar href="libraries-live/slick-util.jar" version="b208"/>
    <jar href="libraries-live/jogg.jar" version="0.0.7"/>
    <jar href="libraries-live/steamworks4j.jar" version="1.8.0"/>
    <jar href="libraries-live/jcef.jar" version="0.0.1"/>

    </resources>
    <application-desc main-class="com.wurmonline.client.launcherfx.WurmLaunchWrapper"  name="Wurm Online">
        <argument>hash=firsthash</argument>
    </application-desc>
</jnlp>

...and Exception tab:

Spoiler

java.lang.ClassNotFoundException: com.wurmonline.properties.Property
    at java.net.URLClassLoader.findClass(Unknown Source)
    at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at com.sun.jnlp.JNLPClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at com.wurmonline.client.FZOk5L6Gfy.<init>(SourceFile:28)
    at com.wurmonline.client.FZOk5L6Gfy.<clinit>(SourceFile:12)
    at com.wurmonline.client.launcherfx.WurmMain.<clinit>(SourceFile:85)
    at com.wurmonline.client.launcherfx.WurmLaunchWrapper.main(SourceFile:27)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at com.sun.javaws.Launcher.executeApplication(Unknown Source)
    at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
    at com.sun.javaws.Launcher.doLaunchApp(Unknown Source)
    at com.sun.javaws.Launcher.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

 

Wurm worked fine just before the yesterdays update. Since update no chance to run wurm. Using "Choose Client", I picked all possible modes.

I tried various methods to get rid of unwanted files, several times i reinstal app and java.
If anyone can diagnose the problem from the mysterious java error code, i'd be grateful.

Edited October 29, 2021 by Sappiro