src/main/java/org/apache/commons/codec/binary/Base32.java [479:494]:
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        if (context.eof) {
            return;
        }
        // inAvail < 0 is how we're informed of EOF in the underlying data we're
        // encoding.
        if (inAvail < 0) {
            context.eof = true;
            if (0 == context.modulus && lineLength == 0) {
                return; // no leftovers to process and not using chunking
            }
            final byte[] buffer = ensureBufferSize(encodeSize, context);
            final int savedPos = context.pos;
            switch (context.modulus) { // % 5
                case 0 :
                    break;
                case 1 : // Only 1 octet; take top 5 bits then remainder
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src/main/java/org/apache/commons/codec/binary/Base64.java [725:740]:
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        if (context.eof) {
            return;
        }
        // inAvail < 0 is how we're informed of EOF in the underlying data we're
        // encoding.
        if (inAvail < 0) {
            context.eof = true;
            if (0 == context.modulus && lineLength == 0) {
                return; // no leftovers to process and not using chunking
            }
            final byte[] buffer = ensureBufferSize(encodeSize, context);
            final int savedPos = context.pos;
            switch (context.modulus) { // 0-2
                case 0 : // nothing to do here
                    break;
                case 1 : // 8 bits = 6 + 2
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