public static void Main(string[] args) { // Notes: // 1. All referenced assemblies shall // define [assembly:Obfuscation(feature = "script")] // 2. Turn off "optimize code" option in release build // 3. All used .net APIs must be defined by ScriptCoreLibJava // 4. Generics are not supported. // 5. Check post build event // 6. Build in release build configuration for java version Console.WriteLine("JSONProperties. Crosscompiled from C# to Java."); Console.WriteLine("---------------------------------"); if (File.Exists("data.json")) { Console.WriteLine("Previous configuration:"); var Previous = MyData.Parse(File.ReadAllText("data.json")); foreach (var k in Previous) { Console.WriteLine(k.Name + " - " + k.Target); } } var Default = new[] { new MyData { Name = "Jane Doe", Target = "0.0.0.0:0" }, new MyData { Name = "Mike Smith", Target = "0.0.0.0:0" } }; Console.WriteLine("Default configuration:"); foreach (var k in Default) { Console.WriteLine(k.Name + " - " + k.Target); } File.WriteAllText("data.json", MyData.ToString(Default)); }