Titanium使用REST POST服务，当服务器收到请求时输入为空

I have a titanium app, and I'm trying to consume a REST Service exposed on Wildfly 8.x and developed on Java using RESTEasy. I managed to make the request reach my wildfly server, but when I check inside the debug what's the method receiving as input, it's an empty String. Also, it is important to note that the WebService receives a String because I'm using a JSon converting library that I did myself, and it receives a JSon as a String.I have a titanium app, and I'm trying to consum