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https://issues.apache.org/jira/browse/XMLBEANS-404?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12856151#action_12856151
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Stanislav Tsvetkov commented on XMLBEANS-404:
---------------------------------------------
We run into this issue as well. It is happening when a value in CDATA ends with
"]".
For example: "test for XMLBEANS-404 it happens when we are working with array
element[n]"
We've decided not to patch XMLBEANS, but to implement a very simple workaround
in our code.
If a value has an extra space after "]" XMLBEANS works fine without any patch.
/*
* this fix for xmlbeans issue with CDATA
*/
private String xmlBeansFix(String val)
{
if (val.endsWith("]"))
val += " ";
return val;
}
> entitizeContent CDATA loop iterating too many times (causes assertion error
> or ArrayIndexOutOfBoundsException in replace)
> -------------------------------------------------------------------------------------------------------------------------
>
> Key: XMLBEANS-404
> URL: https://issues.apache.org/jira/browse/XMLBEANS-404
> Project: XMLBeans
> Issue Type: Bug
> Affects Versions: Version 2.4
> Reporter: Andrew Parker
> Priority: Critical
>
> In the entitizeContent routine in Saver.java there is a loop responsible for
> modifying bad characters and the ">" in "]]>" when surrounding the text with
> "<![CDATA[" and "]]>". The loop iterates _lastEmitCch times, but the first
> two characters of the text have already been processed.
> This causes problems in one of two rare scenarios:
> The last character in _buf is a ']' and the next two unused characters are
> ']' and '>' respectively
> The last two characters in _buf are both ']' and the next unused character
> is a '>'
> In these instances replace invokes System.arraycopy with invalid parameters
> as i is outside of the normal _out/_in range resulting in an
> ArrayIndexOutOfBoundsException or an assertion error is they are enabled.
> In addition, the first two characters are not checked against isBadChar as
> they're processed outside of this loop.
> I believe that a quick and dirty fix for the ArrayIndexOutOfBoundsException
> (but not isBadChar) would be to change this particular loop from:
> for ( int cch = _lastEmitCch ; cch > 0 ; cch-- )
> to
> for ( int cch = _lastEmitCch ; cch > 2; cch-- )
> We don't get the isBadChar problem, so I would be grateful if you could
> confirm the quick and dirty fix above fixes the
> ArrayIndexOutOfBoundsException as I'd like to patch our production system.
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