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7 (10 points) The following code tries to impose a download limit for the Simple Web Server. However, this code has a fatal vulnerability that can be exploited by an attacker to cause the Denial-of-service. Please explain the reason.

char sentBytes = 0; static final int MAX_DOWNLOAD_LIMIT = 5000000; // maximum allowed download size is 5MB while ((c != -1) && (sentBytes < MAX_DOWNLOAD_LIMIT)) { osw.write (c); sentBytes++;

c = fr.read();

}