B4J Question [SOLVED] Exception in thread "JavaFX Application Thread"

[jroriz]

I have a small project to show images.
It's very simple and integrates a floating window for some specific functions.
The program worked without problems until I had to format the PC and reinstall everything.
I have no problems running the program directly from the IDE, but if I run the JAR file directly, the following error occurs:

C:\desenv\Mostra form\Objects>java -jar mostraform.jar
Exception in thread "JavaFX Application Thread" Exception in thread "main" java.lang.UnsupportedClassVersionError: b4j/example/main has been compiled by a more recent version of the Java Runtime (class file version 53.0), this version of the Java Runtime only recognizes class file versions up to 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplicationWithArgs$2(LauncherImpl.java:352)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$7(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$5(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$6(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$4(WinApplication.java:185)
at java.lang.Thread.run(Unknown Source)
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.launcher.LauncherHelper$FXHelper.main(Unknown Source)
Caused by: java.lang.NullPointerException
at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:383)
at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
... 5 more

Could anyone help?

Complete project attached (it's very simple).
The program needs the c:/desenv/telas folder with some .png files in it.

 

[DonManfred]

Use a higher JAVA Version. java 11 probably. One library is compiled with a higher java-version than you are using.

 

[jroriz]

I'm using java 11.0.1 and the libraries I'm using in the project are these:

Removed additional libraries (jawrobot and jreflection) but no success...

 

[agraham]

From the look of it you have Java 8 installed and that is what is trying to run the jar when you type that command line. Java 11 by default does not execute from the command line when installed.
See

(SOLVED) Error trying to run JAR and standalone package - decodeDriverLicense

Hello all Attached B4J project refers. It uses bcprov-jdk16-1.43.jar that you can download from the web. When compiling it in B4J it runs fine - no problem whatsoever (release mode and debug mode). When I compile it to a Standalone package and run it with run_debug in the Objects\temp\build...

www.b4x.com

and

Running jars under OpenJDK 11

With Java 8 you could run a jar on a Windows PC by double clicking on it. This does not work with OpenJDK so as I want to be able to quickly run some utility B4J programs easily without packaging them this is what I did. 1) I installed OpenJDK in a convenient place, mine is in 'C:\jdk-11', and...

www.b4x.com

 

[jroriz]

From the look of it you have Java 8 installed and that is what is trying to run the jar when you type that command line. Java 11 by default does not execute from the command line when installed.
See

(SOLVED) Error trying to run JAR and standalone package - decodeDriverLicense

Hello all Attached B4J project refers. It uses bcprov-jdk16-1.43.jar that you can download from the web. When compiling it in B4J it runs fine - no problem whatsoever (release mode and debug mode). When I compile it to a Standalone package and run it with run_debug in the Objects\temp\build...

www.b4x.com

and

Running jars under OpenJDK 11

With Java 8 you could run a jar on a Windows PC by double clicking on it. This does not work with OpenJDK so as I want to be able to quickly run some utility B4J programs easily without packaging them this is what I did. 1) I installed OpenJDK in a convenient place, mine is in 'C:\jdk-11', and...

www.b4x.com

Thanks.
Solved using the following DOS command:

javaw --module-path C:\Java\javafx\lib --add-modules ALL-MODULE-PATH -jar %1

where %1 is the JAR file to be executed.

 

[jroriz]

From the look of it you have Java 8 installed and that is what is trying to run the jar when you type that command line. Java 11 by default does not execute from the command line when installed.
See

(SOLVED) Error trying to run JAR and standalone package - decodeDriverLicense

Hello all Attached B4J project refers. It uses bcprov-jdk16-1.43.jar that you can download from the web. When compiling it in B4J it runs fine - no problem whatsoever (release mode and debug mode). When I compile it to a Standalone package and run it with run_debug in the Objects\temp\build...

www.b4x.com

and

Running jars under OpenJDK 11

With Java 8 you could run a jar on a Windows PC by double clicking on it. This does not work with OpenJDK so as I want to be able to quickly run some utility B4J programs easily without packaging them this is what I did. 1) I installed OpenJDK in a convenient place, mine is in 'C:\jdk-11', and...

www.b4x.com

Thank you.
Solved using the DOS command as follow:

c:\java\bin\javaw --module-path C:\Java\javafx\lib --add-modules ALL-MODULE-PATH -jar %1

where %1 is your JAR file.