src/main/java/org/apache/commons/net/tftp/TFTPClient.java [145:152]:
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        try {
            do { // while more data to fetch
                bufferedSend(sent); // start the fetch/send an ack
                boolean wantReply = true;
                int timeouts = 0;
                do { // until successful response
                    try {
                        final TFTPPacket received = bufferedReceive();
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src/main/java/org/apache/commons/net/tftp/TFTPClient.java [312:321]:
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        try {
            do { // until eof
                 // first time: block is 0, lastBlock is 0, send a request packet.
                 // subsequent: block is integer starting at 1, send data packet.
                bufferedSend(sent);
                boolean wantReply = true;
                int timeouts = 0;
                do {
                    try {
                        final TFTPPacket received = bufferedReceive();
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