DO NOT REPLY [Bug 15645] New: - java.lang.StackOverflow when validating an attribute using regular expression in xml schema

[bu...@apache.org]

DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG 
RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT
<http://nagoya.apache.org/bugzilla/show_bug.cgi?id=15645>.
ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND 
INSERTED IN THE BUG DATABASE.

http://nagoya.apache.org/bugzilla/show_bug.cgi?id=15645

java.lang.StackOverflow when validating an attribute using regular expression in xml schema

           Summary: java.lang.StackOverflow when validating an attribute
                    using regular expression in xml schema
           Product: Xerces2-J
           Version: 2.2.1
          Platform: PC
        OS/Version: Windows NT/2K
            Status: NEW
          Severity: Critical
          Priority: Other
         Component: XML Schema Structures
        AssignedTo: xerces-j-dev@xml.apache.org
        ReportedBy: odoolman@mercadosw.com


I perform a SAX parsing on an XML file using an (external) validating schema 
(xsd file). During parsing I get the following error:
java.lang.StackOverflowError
	at java.lang.String.charAt(String.java:454)
	at org.apache.xerces.impl.xpath.regex.RegularExpression.matchString
(RegularExpression.java:1701)
	at org.apache.xerces.impl.xpath.regex.RegularExpression.matchString
(RegularExpression.java:1940)
	at org.apache.xerces.impl.xpath.regex.RegularExpression.matchString
(RegularExpression.java:1914)
	at org.apache.xerces.impl.xpath.regex.RegularExpression.matchString
(RegularExpression.java:1940)
	at org.apache.xerces.impl.xpath.regex.RegularExpression.matchString
(RegularExpression.java:1914)
	at org.apache.xerces.impl.xpath.regex.RegularExpression.matchString
(RegularExpression.java:1940)
	at org.apache.xerces.impl.xpath.regex.RegularExpression.matchString
(RegularExpression.java:1914)
....

I tried to debug a little and saw that the problem is caused with a specific 
value which is 1719 characters long. 

The regular expression from my xsd file is: 
<xsd:pattern value="(\{[^}|&#x22;&#x3c;&#x3e;]+\})?\i\c*\|([^\\]|\\\\|\\\|)
*\|"/>
(legal expressions are for example: "|abc|def|" or "|ab\\c|def|")

The value it tries to evaluate:

Books_prod_info|100553088|103872294|This is &quot;an account of of the domestic 
life of Samuel Clemens. . . . Willis discusses Olivia&apos;s role as reformer 
of her husband&apos;s lifestyle and editor of his work She also writes . . . 
about Olivia&apos;s role in the education of her children, the individual 
aspirations and problems of each child, and theirrelationships with their 
parents.&quot; (Am Lit) Bibliography. Index. Mark Twain is America&apos;s best-
known and perhaps most popular writer. But until now little has been known 
about the love of his life--Olivia Langdon Clemens, his adored 
&quot;Livy&quot;. In Mark and Livy, Resa Willis has redressed this oversight, 
presenting us with the fullest insights and details of four decades of 
courtship and marriage, showing us a famous writer at home and at work, and the 
splendid woman who was his consistent critic and companion, editor and muse, 
trusted advisor and beloved wife. The daughter of a prominent, wealthy, and 
broad-minded family--they were founding members of the local Congregational 
Church, abolitionists, and helpers on the underground railroad--in upstate New 
York, Olivia Langdon was just twenty-two when she and Samuel Clemens first met 
at Christmastime in 1867. (In his autobiography, he would later claim that he 
had seen her before--in a photograph owned by her brother, whom Clemens had 
befriended on his trip to the Holy Land--and fallen in love at first sight.) A 
lifelong diarist, reader, and commentator on her own readings, Livy at first 
resisted his courtship, but soon she relented, providing Clemens with the 
&quot;sivilizing&quot; influence that he craved, even as he thought himself 
unworthy, and that made life possible for him as he composed the books that 
made his fortune and reputation. |27|||

Thanks a lot.
And if you need my xml file and my schema file - I have it (I didn't see any 
way to submit them using bugzilla).

Ori.

---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-j-dev-unsubscribe@xml.apache.org
For additional commands, e-mail: xerces-j-dev-help@xml.apache.org