[Exist-development] Strange NPE....

[Andrzej J. T. <an...@ch...>]

We had an XQuery running as a scheduled task and got this NPE:

java.lang.NullPointerException
	at org.exist.stax.EmbeddedXMLStreamReader.verifyOriginNodeId(EmbeddedXMLStreamReader.java:250)
	at org.exist.stax.EmbeddedXMLStreamReader.next(EmbeddedXMLStreamReader.java:240)
	at org.exist.dom.VirtualNodeSet.addChildren(VirtualNodeSet.java:503)
	at org.exist.dom.VirtualNodeSet.getNodes(VirtualNodeSet.java:449)
	at org.exist.dom.VirtualNodeSet.realize(VirtualNodeSet.java:567)
	at org.exist.dom.VirtualNodeSet.getLength(VirtualNodeSet.java:736)
	at org.exist.dom.VirtualNodeSet.isEmpty(VirtualNodeSet.java:646)
	at org.exist.xquery.Atomize.atomize(Atomize.java:75)
	at org.exist.xquery.Atomize.eval(Atomize.java:66)
	at org.exist.xquery.CastExpression.eval(CastExpression.java:95)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:61)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:241)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:137)
	at org.exist.xquery.DynamicCardinalityCheck.eval(DynamicCardinalityCheck.java:71)
	at org.exist.xquery.UntypedValueCheck.eval(UntypedValueCheck.java:82)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:274)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:201)
	at org.exist.xquery.GeneralComparison.genericCompare(GeneralComparison.java:501)
	at org.exist.xquery.GeneralComparison.genericCompare(GeneralComparison.java:494)
	at org.exist.xquery.GeneralComparison.eval(GeneralComparison.java:449)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:61)

Any ideas what might be causing this offhand?

I'll dig into the code shortly to see what it might have been doing...

Thanks!

-- 
Andrzej Taramina
Chaeron Corporation: Enterprise System Solutions
http://www.chaeron.com