Java: update CRC32 from a stream

Question

Am I misunderstanding the use of either of the CRC32 or CheckedInputStream classes to calculate a checksum by continuously updating with the latest input? When the input is <= 128KiB a valid CRC32 is generated. Anything larger than 128KiB and the checksum fails. Below is some code I am working with (using a CRC32 object and BufferedInputStream but the same problem happens if I use a CheckedInputStream to keep track of the CRC32).

I would appreciate any advice or comments, thank you

private static long calcCRC32() throws IOException {
    BufferedInputStream inStream = new BufferedInputStream(System.in);
    int BLOCK_SIZE = 128*1024; //128KiB
    int len;
    byte[] buffer = new byte[BLOCK_SIZE];

    CRC32 crc32 = new CRC32();
    crc32.reset();

    while((len = bufferedInputStream.read(buffer, 0, BLOCK_SIZE)) > 0){         
        crc32.update(buffer, 0, len);
        buffer = new byte[BLOCK_SIZE];
    }

    return crc32.getValue();
}