Hi Rio,
> We are missing sun/reflect/ReflectionFactory$GetReflectionFactoryAction inner > class > > in jdk.unsupported module: > > java.lang.NoClassDefFoundError: > sun/reflect/ReflectionFactory$GetReflectionFactoryAction > at > jdk.internal.loader.BuiltinClassLoader.loadClass(java.base@9-internal/BuiltinClassLoader.java:366) > at > jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(java.base@9-internal/ClassLoaders.java:184) > at > java.lang.ClassLoader.loadClass(java.base@9-internal/ClassLoader.java:419) > at > org.jboss.marshalling.reflect.SerializableClass.<clinit>(SerializableClass.java:47) GetReflectionFactoryAction is a convenience class for acquiring the capability to instantiate reflective objects. It’s code is: As part of JEP 260, we retained the single getReflectionFactory accessor. You can replace your usage with the following: PrivilegedAction<ReflectionFactory> pa = new PrivilegedAction<ReflectionFactory>() { @Override public ReflectionFactory run() { return ReflectionFactory.getReflectionFactory(); } }; -Chris.