The string "--" is not permitted, java project [duplicate]

Question

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Cure for ‘The string “--” is not permitted within comments.’ exception?

I have a Java project to parse and edit XML files. When I try to run the project I get the following log message:

 The string "--" is not permitted within comments. Exception in thread "main" org.xml.sax.SAXParseException: The string "--" is not permitted within comments. at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:246) ...

How can I resolve it?

and similar to stackoverflow.com/questions/1324821/nested-comments-in-xml — Karthik T
– Karthik T, Commented Dec 20, 2012 at 9:27

Sirko · Accepted Answer · 2012-12-20 09:27:46Z

8

Without further knowing your code:

There error is as you were told. Somewhere in your XML sheet, you have a comment, which includes a -- in it. For example something like this:

<root> <!-- my comment with -- in it --> </root>

This is not a well formed XML. Within a comment -- is not allowed. The parser will have problems to detect the end of the comment then.

answered Dec 20, 2012 at 9:27

Sirko

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5 Comments

xoned Over a year ago

May you can explain why it's difficult for the parser? I mean "-->" defines the end of the comment. So why is the parser not just ignoring the "--" and looking further?

user1918246 Over a year ago

DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance(); docFactory.setIgnoringComments(true); docFactory.setValidating(false); DocumentBuilder docBuilder = docFactory.newDocumentBuilder(); doc = docBuilder.parse(file);

vishal_aim Over a year ago

@Timo +1 for comment, I just searched and found that they kept it like this to remain compatible with SGML

Jörn Horstmann Over a year ago

@Timo: Because its specified that way for compatibility with SGML: w3.org/TR/xml/#sec-comments

user1918246 Over a year ago

there is no way to resolve this?

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