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')

[mehmet-27]

in my librarymanager implement classloader is throwing error

[frengor]

jdk.internal.loader.ClassLoaders$AppClassLoader doesn't extends java.net.URLClassLoader, so URLClassLoaderHelper cannot be used: https://github.com/openjdk/jdk/blob/master/src/java.base/share/classes/jdk/internal/loader/ClassLoaders.java

[SNWCreations]

Java 9+ module system caused this. Use a single URLClassLoader for your Bot application to solve this? Not this library's fault due to the environment they supported are all use URLClassLoader in the classloading context.