public static String encode(byte[] source) {
    return encode(source, 0, source.length, ALPHABET, true);
  }
Encodes a byte array into Base64 notation.
Equivalent to calling
{@code encodeBytes(source, 0, source.length)}

@param source The data to convert
@since 1.4
android/android_framework/base/src/main/java/com/google/android/vending/licensing/util/Base64.java