@@ -0,0 +1,523 @@
+package com.jagsaund.rxuploader.utils;%0A%0Aimport android.support.annotation.NonNull;%0Aimport android.support.annotation.Nullable;%0A%0Apublic class StringUtils %7B%0A    public static boolean isNullOrEmpty(@Nullable CharSequence s) %7B%0A        return s == null %7C%7C s.length() == 0;%0A    %7D%0A%0A    @NonNull%0A    public static String getOrDefault(@Nullable String s, @NonNull String t) %7B%0A        return s != null ? s : t;%0A    %7D%0A%0A    @NonNull%0A    public static String getOrEmpty(@Nullable String s) %7B%0A        return getOrDefault(s, %22%22);%0A    %7D%0A%7D%0A

Add StringUtils Helper Methods