从runes / int8数组转换为字符串，反之亦然

I'm porting a library from Java to Go. This library passes all parameters and returns as strings, and I must maintain this way due subsequent steps. I noticed when I cast a rune/int8 array to string and I convert back to rune/int8 array I get different values. I believe that is caused by Unicode characters. Is there a way to get the same values?I'm porting a library from Java to Go. This lib