Unknown exception during NsSAX2Reader parse

Question

Hello!
I'm using java API for Berkeley DB XML 2.4.13 under Windows XP SP2.
I have the following peace of code:
documentConfig = new XmlDocumentConfig();
XmlResults results = xmlContainer.getAllDocuments(documentConfig);
while(results.hasNext()) {
XmlDocument doc = results.next().asDocument();
After the line "XmlDocument doc = results.next().asDocument()" I get an exception:
com.sleepycat.dbxml.XmlException: Error: Unknown exception during NsSAX2Reader parse File: \dbxml-2.4.13\dbxml\src\dbxml\nodeStore\NsSAX2Reader.cpp Line: 366, errcode = INTERNAL_ERROR
     at com.sleepycat.dbxml.dbxml_javaJNI.XmlResults_nextInternal(Native Method)
     at com.sleepycat.dbxml.XmlResults.nextInternal(XmlResults.java:162)
     at com.sleepycat.dbxml.XmlResults.next(XmlResults.java:47)
.... (exceptions in my code)
Does anybody know how to figure out what is the reason of this error?
Additional information:
I added documents to the container via C++ API
The container has WholeDoc type
Thanks in advance
Vyacheslav

Answer 1

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE omdoc PUBLIC "-//OMDoc//DTD OMDoc V1.2//EN"
"../../dtd/omdoc.dtd" []>
<omdoc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns="http://www.mathweb.org/omdoc"
xml:id="alg1-omdoc">
<metadata>
<dc:title>The OpenMath Content Dictionary alg1.ocd in OMDoc form</dc:title>
<dc:creator role="trl">Michael Kohlhase</dc:creator>
<dc:creator role="ant">The OpenMath Society</dc:creator>
<dc:date> 2001-03-12T00:00:00</dc:date>
<dc:source>Derived from the OpenMath CD http://www.openmath.org/cd/alg1.ocd.</dc:source>
<dc:type>Text</dc:type>
<dc:format>application/omdoc+xml</dc:format>
<dc:rights>Copyright (c) 2000-2002 Michael Kohlhase;
This OMDoc content dictionary is released under the OpenMath license:
http://monet.nag.co.uk/openmath/cdfiles/license.html
</dc:rights>
<dc:description>
A CD of basic algebraic concepts
At present this CD only holds definitions of zero and one. They are
deliberately defined here without specifying any particular structure
(e.g. a group) to which they correspond.
</dc:description>
</metadata>
<theory xml:id="alg1">
<imports xml:id="alg1-imports-quant1" from="quant1.omdoc#quant1"/>
<imports xml:id="alg1-imports-relation1" from="relation1.omdoc#relation1"/>
<imports xml:id="alg1-imports-arith1" from="arith1.omdoc#arith1"/>
<imports xml:id="alg1-imports-logic1" from="logic1.omdoc#logic1"/>
<imports xml:id="alg1-imports-set1" from="set1.omdoc#set1"/>
<imports xml:id="alg1-imports-setname1" from="setname1.omdoc#setname1"/>
<symbol name="zero" xml:id="zero">
<metadata>
<dc:description>This symbol represents the additive identity element.</dc:description><dc:subject>zero</dc:subject></metadata>
<type system="sts.omdoc#sts">
<OMOBJ xmlns="http://www.openmath.org/OpenMath"><OMV name="AbelianMonoid"/></OMOBJ>
</type>
</symbol>
<presentation xml:id="pr-zero" for="#zero">
<use format="default">0</use>
<use format="cmml" element="zero"/>
</presentation>
<assertion xml:id="zero-prop-1" type="lemma">
<CMP> for all a | a + 0 = a </CMP>
<FMP>
<OMOBJ xmlns="http://www.openmath.org/OpenMath">
<OMBIND>
     <OMS cd="quant1" name="forall"/>
     <OMBVAR>
     <OMV name="a"/>
     </OMBVAR>
     <OMA>
     <OMS cd="relation1" name="eq"/>
     <OMA>
     <OMS cd="arith1" name="plus"/>
     <OMV name="a"/>
     <OMS cd="alg1" name="zero"/>
     </OMA>
     <OMV name="a"/>
     </OMA>
</OMBIND>
</OMOBJ>
</FMP>
</assertion>
<assertion xml:id="zero-prop-3" type="lemma">
<CMP> for all a | 0 * a = 0 </CMP>
<FMP>
<OMOBJ xmlns="http://www.openmath.org/OpenMath">
<OMBIND>
     <OMS cd="quant1" name="forall"/>
     <OMBVAR>
     <OMV name="a"/>
     </OMBVAR>
     <OMA>
     <OMS cd="relation1" name="eq"/>
     <OMA>
     <OMS cd="arith1" name="times"/>
     <OMS cd="alg1" name="zero"/>
     <OMV name="a"/>
     </OMA>
     <OMS cd="alg1" name="zero"/>
     </OMA>
</OMBIND>
</OMOBJ>
</FMP>
</assertion>
<assertion xml:id="zero-prop-5" type="lemma">
<CMP>The zero of the integers is 0</CMP>
<FMP>
<OMOBJ xmlns="http://www.openmath.org/OpenMath">
<OMBIND>
     <OMS cd="quant1" name="forall"/>
     <OMBVAR>
     <OMV name="x"/>
     </OMBVAR>
     <OMA>
     <OMS cd="logic1" name="implies"/>
     <OMA>
     <OMS cd="logic1" name="and"/>
     <OMA>
     <OMS cd="set1" name="in"/>
     <OMV name="x"/>
     <OMS cd="setname1" name="Z"/>
     </OMA>
     <OMA>
     <OMS cd="relation1" name="eq"/>
     <OMV name="x"/>
     <OMS cd="alg1" name="zero"/>
     </OMA>
     </OMA>
     <OMA>
     <OMS cd="relation1" name="eq"/>
     <OMV name="x"/>
     <OMI>0</OMI>
     </OMA>
     </OMA>
</OMBIND>
</OMOBJ>
</FMP>
</assertion>
<symbol name="one" xml:id="one">
<metadata>
<dc:description>This symbol represents the multiplicative identity element.</dc:description><dc:subject>one</dc:subject></metadata>
<type system="sts.omdoc#sts">
<OMOBJ xmlns="http://www.openmath.org/OpenMath">
<OMV name="Monoid"/>
</OMOBJ>
</type>
</symbol>
<presentation xml:id="pr-one" for="#one">
<use format="default">1</use>
<use format="cmml" element="one"/>
</presentation>
<assertion xml:id="one-prop-1" type="lemma">
<CMP> for all a | 1 * a = a </CMP>
<FMP>
<OMOBJ xmlns="http://www.openmath.org/OpenMath">
<OMBIND>
     <OMS cd="quant1" name="forall"/>
     <OMBVAR>
     <OMV name="a"/>
     </OMBVAR>
     <OMA>
     <OMS cd="relation1" name="eq"/>
     <OMA>
     <OMS cd="arith1" name="times"/>
     <OMS cd="alg1" name="one"/>
     <OMV name="a"/>
     </OMA>
     <OMV name="a"/>
     </OMA>
</OMBIND>
</OMOBJ>
</FMP>
</assertion>
<assertion xml:id="one-prop-3" type="lemma">
<CMP> for all a | a * 1 = a </CMP>
<FMP>
<OMOBJ xmlns="http://www.openmath.org/OpenMath">
<OMBIND>
     <OMS cd="quant1" name="forall"/>
     <OMBVAR>
     <OMV name="a"/>
     </OMBVAR>
     <OMA>
     <OMS cd="relation1" name="eq"/>
     <OMA>
     <OMS cd="arith1" name="times"/>
     <OMV name="a"/>
     <OMS cd="alg1" name="one"/>
     </OMA>
     <OMV name="a"/>
     </OMA>
</OMBIND>
</OMOBJ>
</FMP>
</assertion>
<assertion xml:id="one-prop-5" type="lemma">
<CMP>The one of the integers is 1</CMP>
<FMP>
<OMOBJ xmlns="http://www.openmath.org/OpenMath">
<OMBIND>
     <OMS cd="quant1" name="forall"/>
     <OMBVAR>
     <OMV name="x"/>
     </OMBVAR>
     <OMA>
     <OMS cd="logic1" name="implies"/>
     <OMA>
     <OMS cd="logic1" name="and"/>
     <OMA>
     <OMS cd="set1" name="in"/>
     <OMV name="x"/>
     <OMS cd="setname1" name="Z"/>
     </OMA>
     <OMA>
     <OMS cd="relation1" name="eq"/>
     <OMV name="x"/>
     <OMS cd="alg1" name="one"/>
     </OMA>
     </OMA>
     <OMA>
     <OMS cd="relation1" name="eq"/>
     <OMV name="x"/>
     <OMI>1</OMI>
     </OMA>
     </OMA>
</OMBIND>
</OMOBJ>
</FMP>
</assertion>
</theory>
</omdoc>