Query [Pointer returned by XPathEvaluator's selectSingleNode() C++, Linux]

[Amit Dang]

Hi All,
    I am using XPathEvaluator's selectSingleNode() which, returns a pointer
to XalanNode. When I call delete for this XalanNode it prints following
message

**********************************
free(): invalid pointer 0x80607e8!
pure virtual method called
Aborted
**********************************

Same is the case with XalanNode* returned by NodeRefList's item().

API documentation does not provides any pointer regarding this.

Note: I am using Linux & C++

Thanks,
Amit Dang