Hi All,

  I using xmlbeans 2.5.0 with saxon 9.2 to do XPATH query like:

XmlObject[] elementAr = vpioDocument.getVpio().getPromotion().getBaseLayout().selectPath(PromoDocumentRepository.VP_NAMESPACE + "$this/vp:page/vp:block[@id='" + blockId + "']/vp:regionBlock[not(@regionId) or @regionId = '" + regionId + "']");

that gives the following string:
-declare namespace vp='http://vocio.qmi.com/vp/xml' $this/vp:page/vp:block[@id='2']/vp:regionBlock[not(@regionId) or @regionId = '1']


I got the following NullPointerException is the exception:

ERROR ExceptionHandlingServiceAbstractImpl - Exception logged: null
java.lang.NullPointerException
        at net.sf.saxon.dom.NodeWrapper$ChildEnumeration.skipFollowingTextNodes(NodeWrapper.java:1161)
        at net.sf.saxon.dom.NodeWrapper$ChildEnumeration.next(NodeWrapper.java:1188)
        at net.sf.saxon.om.Navigator$AxisFilter.next(Navigator.java:867)
        at net.sf.saxon.expr.ContextMappingIterator.next(ContextMappingIterator.java:54)
        at net.sf.saxon.expr.FilterIterator.getNextMatchingItem(FilterIterator.java:61)
        at net.sf.saxon.expr.FilterIterator.next(FilterIterator.java:44)
        at net.sf.saxon.expr.ContextMappingIterator.next(ContextMappingIterator.java:51)
        at net.sf.saxon.expr.FilterIterator.getNextMatchingItem(FilterIterator.java:61)
        at net.sf.saxon.expr.FilterIterator.next(FilterIterator.java:44)
        at net.sf.saxon.value.SequenceExtent.<init>(SequenceExtent.java:98)
        at net.sf.saxon.sort.DocumentOrderIterator.<init>(DocumentOrderIterator.java:30)
        at net.sf.saxon.sort.DocumentSorter.iterate(DocumentSorter.java:85)
        at net.sf.saxon.sxpath.XPathExpression.evaluate(XPathExpression.java:128)
        at org.apache.xmlbeans.impl.xpath.saxon.XBeansXPath.selectNodes(XBeansXPath.java:119)
        at org.apache.xmlbeans.impl.xpath.saxon.XBeansXPath.selectPath(XBeansXPath.java:148)
        at org.apache.xmlbeans.impl.store.Path$DelegatePathImpl$DelegatePathEngine.next(Path.java:544)
        at org.apache.xmlbeans.impl.store.Cursor._toSelection(Cursor.java:931)
        at org.apache.xmlbeans.impl.store.Cursor._toNextSelection(Cursor.java:920)
        at org.apache.xmlbeans.impl.store.Cursor._hasNextSelection(Cursor.java:912)
        at org.apache.xmlbeans.impl.store.Cursor.hasNextSelection(Cursor.java:2652)
        at org.apache.xmlbeans.impl.values.XmlObjectBase.selectPath(XmlObjectBase.java:467)
        at org.apache.xmlbeans.impl.values.XmlObjectBase.selectPath(XmlObjectBase.java:449)
        at com.qwi.coficio.vp.repository.PageRepositoryImpl.getRegionBlocksForRegion(PageRepositoryImpl.java:153)
        at com.qwi.coficio.vp.service.PageServiceImpl.getRegionBlocksForRegion(PageServiceImpl.java:500)
        at com.qwi.coficio.vp.service.PageServiceImpl.computePageCategoryList(PageServiceImpl.java:722)
        at com.qwi.coficio.vp.service.PageServiceImpl.moveBlocksFromCategory(PageServiceImpl.java:316)
        at com.qwi.coficio.vp.facade.ModifyingPromotionLayoutFacadeImpl.assignAvailableCategory(ModifyingPromotionLayoutFacadeImpl.java:487)
        at com.qwi.coficio.vp.engine.components.ComponentsEngine.assignBlockFromCategoryInternal(ComponentsEngine.java:758)
        at com.qwi.coficio.vp.engine.components.PageCategoryListModificationCommand.redoIt(PageCategoryListModificationCommand.java:50)
        at com.qwi.coficio.engine.AbstractBaseCommand.doIt(AbstractBaseCommand.java:79)
        at com.qwi.coficio.engine.AbstractCommand.doIt(AbstractCommand.java:53)
        at com.qwi.coficio.vp.engine.components.ComponentsEngine.assignBlockFromCategory(ComponentsEngine.java:726)
        at com.qwi.coficio.vp.view.editor.PromotionPlanEditor$PromoPlanTransferHandler.processDropForCategory(PromotionPlanEditor.java:1319)
        at com.qwi.coficio.vp.view.editor.PromotionPlanEditor$PromoPlanTransferHandler.importData(PromotionPlanEditor.java:1186)
        at javax.swing.TransferHandler$DropHandler.drop(TransferHandler.java:1468)
        at java.awt.dnd.DropTarget.drop(DropTarget.java:434)
        at javax.swing.TransferHandler$SwingDropTarget.drop(TransferHandler.java:1193)
        at sun.awt.dnd.SunDropTargetContextPeer.processDropMessage(SunDropTargetContextPeer.java:500)
        at sun.awt.dnd.SunDropTargetContextPeer$EventDispatcher.dispatchDropEvent(SunDropTargetContextPeer.java:812)
        at sun.awt.dnd.SunDropTargetContextPeer$EventDispatcher.dispatchEvent(SunDropTargetContextPeer.java:736)
        at sun.awt.dnd.SunDropTargetEvent.dispatch(SunDropTargetEvent.java:30)
        at java.awt.Component.dispatchEventImpl(Component.java:4358)
        at java.awt.Container.dispatchEventImpl(Container.java:2081)
        at java.awt.Component.dispatchEvent(Component.java:4331)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4301)
        at java.awt.LightweightDispatcher.processDropTargetEvent(Container.java:4036)
        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3890)
        at java.awt.Container.dispatchEventImpl(Container.java:2067)
        at java.awt.Window.dispatchEventImpl(Window.java:2458)
        at java.awt.Component.dispatchEvent(Component.java:4331)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

Any Idea what wrong ?

Thanks for your help!

I got the same exception with 9.0...

Regard
David