B4J Question ClassLoader doesn't it work anymore from Java 11?

[Waldemar Lima]

Was the classloader removed from Java 11?
I'm trying to use JarLoder Library , but the error below occurs when I use Java 11 and above...

Waiting for debugger to connect...
Program started.
Error occurred on line: 51 (Main)
java.lang.RuntimeException: java.lang.ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and java.net.URLClassLoader are in module java.base of loader 'bootstrap')
    at nz.ope.jarLoaderWrapper.loadJAR(jarLoaderWrapper.java:41)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at anywheresoftware.b4a.shell.Shell.runVoidMethod(Shell.java:673)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:240)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:167)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:111)
    at anywheresoftware.b4a.shell.ShellBA.raiseEvent2(ShellBA.java:100)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:98)
    at nz.ope.handlerserver.main.main(main.java:29)
Caused by: java.lang.ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and java.net.URLClassLoader are in module java.base of loader 'bootstrap')
    at nz.ope.jarLoaderWrapper.loadJAR(jarLoaderWrapper.java:26)
    ... 15 more

Does anyone have any idea if this information is correct?

 

[Erel]

ClassLoader is there but starting from Java 9 things got much more complicated with the new modules system: https://www.oracle.com/il-en/corporate/features/understanding-java-9-modules.html
Loading jars at runtime, something that was always considered bad practice, is more difficult now.

 

[Waldemar Lima]

Thanks for the clarification, once again.