Method copy

src/main/java/org/apache/commons/io/IOUtils.java:2077–2083

Copies bytes from an InputStream to an OutputStream . This method buffers the input internally, so there is no need to use a BufferedInputStream . Large streams (over 2GB) will return a bytes copied value of -1 after the copy has completed si

(final InputStream input, final OutputStream output)

     * @since 1.1
     */
    public static int copy(final InputStream input, final OutputStream output) throws IOException {
        final long count = copyLarge(input, output);
        if (count > Integer.MAX_VALUE) {
            return -1;
        }
        return (int) count;
    }

    /**
     * Copies bytes from an <code>InputStream</code> to an <code>OutputStream</code> using an internal buffer of the