这里不允许使用“Void”类型（Java）

I have 2 class the EmpresaTest(Main) and the Empresa. When I save the return statement of a metod, is returned a error: "Void type not allowed here". I noticed in some foruns that could be 'cause the metod is "void" type, but, in this case, is not void, it is boolean.I have 2 class the EmpresaTest(Main) and the Em