import java.io.File; import java.lang.reflect.Field; import java.util.Arrays; import net.minecraft.client.main.Main; public class Start { public static void main(String[] args) { Main.main(concat(new String[] {"--version", "mcp", "--accessToken", "0", "--assetsDir", "assets", "--assetIndex", "1.8", "--userProperties", "{}"}, args)); } public static T[] concat(T[] first, T[] second) { T[] result = Arrays.copyOf(first, first.length + second.length); System.arraycopy(second, 0, result, first.length, second.length); return result; } }