org.jdom.IllegalDataException: The data ""is not legal for a JDOM attribute: 0xb is not a legal 異常

今天用jdom生成xml，在操作中出現了 org.jdom.IllegalDataException: The data ""is not legal for a JDOM attribute: 0xb is not a legal 異常，仔細跟蹤發現，在原有的組建對象的屬性中出現了異常字符，通過下面的替換，再重新轉換成String,trim後正常。

    char [] xmlChar = paragraph.toCharArray();
    for (int i=0; i < xmlChar.length; ++i) {
    if (xmlChar[i] > 0xFFFD)
    {
       //直接替換掉0xb
        xmlChar[i] =' ';
    }
    else if (xmlChar[i] < 0x20 && xmlChar[i] != 't' & xmlChar[i] != 'n' & xmlChar[i] != 'r')
    {
       //直接替換掉0xb
        xmlChar[i] =' ' ;
    }
    }