Can't run java application

Support Software & Applications
,
1

Good afternoon, I can not start the application with the extension .jar
I’m a completely new user, I don’t know a lot, but I’m trying to learn.
I will be glad for your help :slight_smile:

Console

$ java -jar XRemote_Server_1.8.jar
Exception in thread “main” java.lang.NoClassDefFoundError: javafx/application/Application
at java.base/java.lang.ClassLoader.defineClass1(Native Method)
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017)
at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174)
at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:800)
at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:698)
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:621)
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:579)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
at com.crazyxacker.apps.xremotepc.Main.main(Main.java:9)
Caused by: java.lang.ClassNotFoundException: javafx.application.Application
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
… 10 more

2

If the application itself throws errors - you need to contact the developer or consider if you are using the correct runtime as some Java applications are coded for at specific version of Java.

1 Like
3

Thanks for the quick response!
Unfortunately, the problem persists, I did everything from the branch that you sent. The application should work, as it will definitely run on Windows.

5

Have you considered if the application itself is relying on some Windows only functionality? That is entirely possible - you know?

6

Did not know
I thought if there was only one file in the .jar format, then it is multiplatform, it turns out it is not. Thank you very much for your reply and I apologize for your time.

7

Java FX is no longer packaged with the Java runtime. see https://askubuntu.com/questions/1136420/java-lang-noclassdeffounderror-javafx-application-application

1 Like
8

This topic was automatically closed 3 days after the last reply. New replies are no longer allowed.