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I want to decode a Base64 encoded string, then store it in my database. If the input is not Base64 encoded, I need to throw an error.
How can I check if a string is Base64 encoded?
CertificateFactory fact = CertificateFactory.getInstance("X.509");
FileInputStream is = new FileInputStream (args[0]);
X509Certificate cer = (X509Certificate) fact.generateCertificate(is);
