Method isValid

common/buildcraft/lib/misc/StackUtil.java:252–254

(ItemStack stack)

    public static final ItemStack INVALID_STACK = null;

    public static boolean isValid(ItemStack stack) {
        return !isInvalid(stack);
    }

    /** Tests to see if a given stack is invalid. This ALSO tests to see if the item is null or the stacksize is less
     * than 0. Vanilla's method also does a metadata check, but that's not used so much in the codebase. */