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From Patrick Diviacco <patrick.divia...@gmail.com>
Subject Re: [digester] NullPointerException
Date Thu, 31 Mar 2011 22:36:47 GMT
Sure, here you are

http://dl.dropbox.com/u/72686/trainSmall.xml

and

http://dl.dropbox.com/u/72686/testSmall.xml

I was wondering if the issue is that XMLReader has been created as static
object...

thanks


On 1 April 2011 00:26, Simone Tripodi <simonetripodi@apache.org> wrote:

> Hi Patrick,
> can you link also to the XML you're trying to parse?
> Simo
>
> http://people.apache.org/~simonetripodi/
> http://www.99soft.org/
>
>
>
> On Thu, Mar 31, 2011 at 10:24 PM, Patrick Diviacco
> <patrick.diviacco@gmail.com> wrote:
> > Hi,
> >
> > I'm trying to store the content of a xml file into memory but for some
> > reason I get following NullPointerException.. (this is the code:
> > http://pastie.org/1740948):
> >
> > Clusterer...
> > Reading XML...
> > Mar 31, 2011 10:19:17 PM org.apache.commons.digester.Digester endElement
> > SEVERE: End event threw exception
> > java.lang.reflect.InvocationTargetException
> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > at
> >
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> > at
> >
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> > at java.lang.reflect.Method.invoke(Method.java:597)
> > at
> >
> org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:216)
> > at org.apache.commons.digester.SetNextRule.end(SetNextRule.java:220)
> > at org.apache.commons.digester.Rule.end(Rule.java:257)
> > at org.apache.commons.digester.Digester.endElement(Digester.java:1345)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(AbstractSAXParser.java:601)
> > at
> >
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:1782)
> > at
> >
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2938)
> > at
> >
> com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
> > at
> >
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205)
> > at
> >
> com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)
> > at org.apache.commons.digester.Digester.parse(Digester.java:1871)
> > at XMLReader.read(XMLReader.java:74)
> > at Clusterer.<init>(Clusterer.java:49)
> > at Main.main(Main.java:11)
> > Caused by: java.lang.NullPointerException
> > at XMLReader$FlickrCollection.addDocument(XMLReader.java:108)
> > ... 22 more
> > java.lang.NullPointerException
> > at
> >
> org.apache.commons.digester.Digester.createSAXException(Digester.java:3363)
> > at
> >
> org.apache.commons.digester.Digester.createSAXException(Digester.java:3389)
> > at org.apache.commons.digester.Digester.endElement(Digester.java:1348)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(AbstractSAXParser.java:601)
> > at
> >
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:1782)
> > at
> >
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2938)
> > at
> >
> com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
> > at
> >
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205)
> > Reading XML...
> > at
> >
> com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)
> > at org.apache.commons.digester.Digester.parse(Digester.java:1871)
> > at XMLReader.read(XMLReader.java:74)
> > at Clusterer.<init>(Clusterer.java:49)
> > at Main.main(Main.java:11)
> > Caused by: java.lang.NullPointerException
> > at XMLReader$FlickrCollection.addDocument(XMLReader.java:108)
> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > at
> >
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> > at
> >
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> > at java.lang.reflect.Method.invoke(Method.java:597)
> > at
> >
> org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:216)
> > at org.apache.commons.digester.SetNextRule.end(SetNextRule.java:220)
> > at org.apache.commons.digester.Rule.end(Rule.java:257)
> > at org.apache.commons.digester.Digester.endElement(Digester.java:1345)
> > ... 14 more
> > Mar 31, 2011 10:19:17 PM org.apache.commons.digester.Digester endElement
> > SEVERE: End event threw exception
> > java.lang.reflect.InvocationTargetException
> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > at
> >
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> > at
> >
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> > at java.lang.reflect.Method.invoke(Method.java:597)
> > at
> >
> org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:216)
> > at org.apache.commons.digester.SetNextRule.end(SetNextRule.java:220)
> > at org.apache.commons.digester.Rule.end(Rule.java:257)
> > at org.apache.commons.digester.Digester.endElement(Digester.java:1345)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(AbstractSAXParser.java:601)
> > at
> >
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:1782)
> > at
> >
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2938)
> > at
> >
> com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
> > at
> >
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205)
> > at
> >
> com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)
> > at org.apache.commons.digester.Digester.parse(Digester.java:1871)
> > at XMLReader.read(XMLReader.java:74)
> > at Clusterer.<init>(Clusterer.java:50)
> > at Main.main(Main.java:11)
> > Caused by: java.lang.NullPointerException
> > at XMLReader$FlickrCollection.addDocument(XMLReader.java:108)
> > ... 22 more
> > java.lang.NullPointerException
> > at
> >
> org.apache.commons.digester.Digester.createSAXException(Digester.java:3363)
> > at
> >
> org.apache.commons.digester.Digester.createSAXException(Digester.java:3389)
> > at org.apache.commons.digester.Digester.endElement(Digester.java:1348)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(AbstractSAXParser.java:601)
> > at
> >
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:1782)
> > at
> >
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2938)
> > at
> >
> com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
> > at
> >
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:511)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
> > at
> >
> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205)
> > at
> >
> com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)
> > at org.apache.commons.digester.Digester.parse(Digester.java:1871)
> > at XMLReader.read(XMLReader.java:74)
> > at Clusterer.<init>(Clusterer.java:50)
> > at Main.main(Main.java:11)
> > Caused by: java.lang.NullPointerException
> > at XMLReader$FlickrCollection.addDocument(XMLReader.java:108)
> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > at
> >
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> > at
> >
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> > at java.lang.reflect.Method.invoke(Method.java:597)
> > at
> >
> org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:216)
> > at org.apache.commons.digester.SetNextRule.end(SetNextRule.java:220)
> > at org.apache.commons.digester.Rule.end(Rule.java:257)
> > []
> > []
> > at org.apache.commons.digester.Digester.endElement(Digester.java:1345)
> > ... 14 more
> >
>
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