[dom4j-dev] Illegal XML character

[Leos Literak]

Hello,

I'd like to reiterate my old report about bug in serialization.
I have upgraded to 1.6 but it happens again and again.
Sometimes I cannot open XML document, it fails, that String
serialized with DOM4J is not valid, because it contains
invalid XML character.

Portion of XML:

<comment id="4"><created>2005-06-26 13:32</created>
<title>Re: GlobeTrotter GPRS - divné odpovědi</title>
<text format="0">
&lt;pre&gt;teepee pcmcia # cardctl status
Socket 0:
  3.3V CardBus card
teepee pcmcia # cat /dev/tts/4
&#30;&lt;&lt;/pre&gt;
</text></comment>

it was generated with:

ByteArrayOutputStream os = new ByteArrayOutputStream();
OutputFormat format = new OutputFormat(null,false,"ISO-8859-2");
format.setSuppressDeclaration(true);
XMLWriter writer = new XMLWriter(os,format);
writer.write(data);
String result = os.toString();

Then I attempted to read it via:

Document data = DocumentHelper.parseText(stringData);

but it throws:

Caused by: org.dom4j.DocumentException:
Error on line 157 of document  : Illegal XML character &#x1e;
Nested exception: Illegal XML character &#x1e;
        at org.dom4j.io.SAXReader.read(SAXReader.java:482)
        at org.dom4j.DocumentHelper.parseText(DocumentHelper.java:278)
        at cz.abclinuxu.data.XMLHandler.lazyInit(XMLHandler.java:103)

The problematic character is "&#30;",
xmllint complaints this way:
parser error : xmlParseCharRef: invalid xmlChar value 30

I don't know, how the original input looked like. I cannot simulate
it manually, I just have to fix it several times per month.
I guess that these invalid entities may be some strange unicode 
characters ..

Any idea, how to avoid this? Thanks

Leos


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