nashorn_base64_min.js

// This is a minimal Base64 encode/decode utility for Nashorn -> JavaScript
// Add error checking for data types as needed within encode or decode
var Base64 = {
	decode: function (str) {
		return new java.lang.String(java.util.Base64.decoder.decode(str));
	},
	encode: function (str) {
		return java.util.Base64.encoder.encodeToString(str.bytes);
	}
};

print(Base64.decode(Base64.encode("Hello, World!")));