Got a Fail but don't know what is the reason

[rennanpossas]

Could you try a different approach in the line below

@joob

-keepclasseswithmembers public class org.joobsoft.vt.Main,obfuscationexample.ObfuscationExample {
    public static void main(java.lang.String[]);
}

Could you try just for one class?

Like this:

-keepclasseswithmembers public class org.joobsoft.vt.Main {
    public static void main(java.lang.String[]);
}