question: @ SuppressWarnings ( "restriction" ) @ Test public void test2 ( ) throws IOException { final int maxLineLen = 76 - 1 ; final int maxDataBlockLen = maxLineLen * 3 / 4 ; final sun . misc . BASE64Encoder sunEncoder = new sun . misc . BASE64Encoder ( ) ; final sun . misc . BASE64Decoder sunDecoder = new sun . misc . BASE64Decoder ( ) ; final Random rnd = new Random ( 0x538afb92 ) ; for ( int i = 0 ; i < 100 ; i ++ ) { final int len = rnd . nextInt ( maxDataBlockLen + 1 ) ; final byte [ ] b0 = new byte [ len ] ; rnd . nextBytes ( b0 ) ; final String e1 = new String ( Base64Coder . encode ( b0 ) ) ; final String e2 = sunEncoder . encode ( b0 ) ; assertEquals ( "test2" , e2 , e1 ) ; final byte [ ] b1 = Base64Coder . decode ( e1 ) ; final byte [ ] b2 = sunDecoder . decodeBuffer ( e2 ) ; assertArrayEquals ( b0 , b1 ) ; assertArrayEquals ( b0 , b2 ) ; } }
target:  Test Base64Coder against sun.misc.BASE64Encoder/Decoder with random data. Line length below 76.