[
http://nagoya.apache.org/jira/browse/XALANJ-1991?page=comments#action_55497 ]
Carlo Marchiori commented on XALANJ-1991:
-----------------------------------------
Proposed fix.
The problem is with the class org.apache.xpath.objects.XMLString
and in particular with the method
---------------------------------------
public boolean equals(XMLString obj2)
{
if (!obj2.hasString())
return obj2.equals(this);
else
return str().equals(obj2.toString());
}
-------------------------------------------
When both obj2 and this return false on 'hasString' and infinite loop occurs. So
my proposed fix is
----------------------------------
public boolean equals(XMLString obj2)
{
// if (!obj2.hasString())
if (!obj2.hasString() && this.hasString())
return obj2.equals(this);
else
return str().equals(obj2.toString());
}
-------------------------------------
> StackOverflowException comparing two strings
> --------------------------------------------
>
> Key: XALANJ-1991
> URL: http://nagoya.apache.org/jira/browse/XALANJ-1991
> Project: XalanJ2
> Type: Bug
> Components: Xalan
> Versions: 2.4, 2.5Dx, 2.5, 2.6
> Environment: Any
> Reporter: Carlo Marchiori
> Attachments: XALANJ-1991-usecase.zip
>
> java.lang.StackOverflowError
> at
> org.apache.xpath.objects.XStringForChars.hasString(XStringForChars.java:97)
> at org.apache.xpath.objects.XString.equals(XString.java:401)
> at org.apache.xpath.objects.XString.equals(XString.java:402)
> at org.apache.xpath.objects.XString.equals(XString.java:402)
> at org.apache.xpath.objects.XString.equals(XString.java:402)
> at org.apache.xpath.objects.XString.equals(XString.java:402)
> .......
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