src/main/java/org/apache/xml/security/c14n/implementations/UtfHelpper.java [76:102]:
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        byte extraByte = 0;
        if (c < 0x800) {
            // 0x00000080 - 0x000007FF
            // 110xxxxx 10xxxxxx
            extraByte = 1;
        } else if (c < 0x10000) {
            // 0x00000800 - 0x0000FFFF
            // 1110xxxx 10xxxxxx 10xxxxxx
            extraByte = 2;
        } else if (c < 0x200000) {
            // 0x00010000 - 0x001FFFFF
            // 11110xxx 10xxxxx 10xxxxxx 10xxxxxx
            extraByte = 3;
        } else if (c < 0x4000000) {
            // 0x00200000 - 0x03FFFFFF
            // 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
            // already outside valid Character range, just for completeness
            extraByte = 4;
        } else if (c <= 0x7FFFFFFF) {
            // 0x04000000 - 0x7FFFFFFF
            // 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
            // already outside valid Character range, just for completeness
            extraByte = 5;
        } else {
            // 0x80000000 - 0xFFFFFFFF
            // case not possible as java has no unsigned int
            out.write(0x3f);
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src/main/java/org/apache/xml/security/c14n/implementations/UtfHelpper.java [141:167]:
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            byte extraByte = 0;
            if (c < 0x800) {
                // 0x00000080 - 0x000007FF
                // 110xxxxx 10xxxxxx
                extraByte = 1;
            } else if (c < 0x10000) {
                // 0x00000800 - 0x0000FFFF
                // 1110xxxx 10xxxxxx 10xxxxxx
                extraByte = 2;
            } else if (c < 0x200000) {
                // 0x00010000 - 0x001FFFFF
                // 11110xxx 10xxxxx 10xxxxxx 10xxxxxx
                extraByte = 3;
            } else if (c < 0x4000000) {
                // 0x00200000 - 0x03FFFFFF
                // 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
                // already outside valid Character range, just for completeness
                extraByte = 4;
            } else if (c <= 0x7FFFFFFF) {
                // 0x04000000 - 0x7FFFFFFF
                // 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
                // already outside valid Character range, just for completeness
                extraByte = 5;
            } else {
                // 0x80000000 - 0xFFFFFFFF
                // case not possible as java has no unsigned int
                out.write(0x3f);
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