https://github.com/Rfaleiros/Source-Code-Inspection/blob/56b0f5f298c765bf108a41a45cc744f46a5bd433/Source%20Code%20Inspection/src/br/calebe/ticketmachine/core/Troco.java#L71 - Variavel 'ret' se inicia nula, o que quebra o loop abaixo e não inclui a mesma.
Source-Code-Inspection/Source Code Inspection/src/br/calebe/ticketmachine/core/Troco.java
Line 71 in 56b0f5f