Byte Buddy Java Agent working both from command line parameter and Attach API

JavaAgentByteBuddyFinal.java

return new AgentBuilder.Default().disableClassFormatChanges()
    .with(AgentBuilder.RedefinitionStrategy.RETRANSFORMATION)
    .type(named(className))
    .transform(new AgentBuilder.Transformer() {
    
    @Override
    public DynamicType.Builder<?> transform(
        DynamicType.Builder<?> builder, TypeDescription typeDescription,
        ClassLoader classLoader) {
            return builder.visit(Advice.to(LoggingAdvice.class).on(
                    named(methodName)));
        }
});