src/main/java/org/apache/xmlbeans/impl/common/QNameHelper.java [109:135]:
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    public static String hexsafe(String s)
    {
        StringBuilder result = new StringBuilder();
        for (int i = 0; i < s.length(); i++)
        {
            char ch = s.charAt(i);
            if (isSafe(ch))
            {
                result.append(ch);
            }
            else
            {
                byte[] utf8 = null;
                try
                {
                    utf8 = s.substring(i, i + 1).getBytes("UTF-8");
                    for (int j = 0; j < utf8.length; j++)
                    {
                        result.append('_');
                        result.append(hexdigits[(utf8[j] >> 4) & 0xF]);
                        result.append(hexdigits[utf8[j] & 0xF]);
                    }
                }
                catch(UnsupportedEncodingException uee)
                {
                    // should never happen - UTF-8 i always supported
                    result.append("_BAD_UTF8_CHAR");
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src/main/java/org/apache/xmlbeans/impl/common/XMLNameHelper.java [77:103]:
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    public static String hexsafe(String s)
    {
        StringBuilder result = new StringBuilder();
        for (int i = 0; i < s.length(); i++)
        {
            char ch = s.charAt(i);
            if (isSafe(ch))
            {
                result.append(ch);
            }
            else
            {
                byte[] utf8 = null;
                try
                {
                    utf8 = s.substring(i, i + 1).getBytes("UTF-8");
                for (int j = 0; j < utf8.length; j++)
                {
                    result.append('_');
                    result.append(hexdigits[(utf8[j] >> 4) & 0xF]);
                    result.append(hexdigits[utf8[j] & 0xF]);
                    }
                }
                catch(UnsupportedEncodingException uee)
                {
                    // should never happen - UTF-8 is always supported
                    result.append("_BAD_UTF8_CHAR");
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