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private String convertToValidBase64Encode(String cookieParam) { switch(cookieParam.length()%4) { case 3: cookieParam=cookieParam+”=”; break; case 2: cookieParam=cookieParam+”==”; break; case 1: cookieParam=cookieParam+”===”; break; default: System.out.println(“Default: the cookieParam value is–”+cookieParam); } return cookieParam; }