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From Patrick Diviacco <patrick.divia...@gmail.com>
Subject Re: [digester] java.lang.NullPointerException only for a specific file
Date Mon, 28 Mar 2011 12:28:15 GMT
I've solved. the issue was a row in train.xml file. To solve the issue I've
printed the source file rows while processing. However it has been possible
only because the parsing takes 4 minutes.

I'm wondering how to debug such issues with a much bigger text file.

thanks

On 28 March 2011 14:14, Patrick Diviacco <patrick.diviacco@gmail.com> wrote:

> And these are the files:
>
> http://dl.dropbox.com/u/72686/test.xml
>
> http://dl.dropbox.com/u/72686/train.xml
>
> thanks
>
>
> On 28 March 2011 14:13, Patrick Diviacco <patrick.diviacco@gmail.com>wrote:
>
>> Hi,
>>
>> I've a 74MB xml document and I've split it into 2 docs:52MB and 22MB
>> respectively.
>>
>> I'm parsing the file using common Digester library, and everything works
>> perfectly for the small file, but I  get a NullPointerExceptio with the big
>> one.
>>
>> I don't think the issue is the code because it works for the small file...
>> I guess the problem is with the file itself.
>>
>> I've parsed the files with the same parser, so I don't think the files
>> have issues either.
>>
>> In conclusion I dunno where the issue is. This is the code:
>> http://pastie.org/1726063
>>
>> This is the exception
>> SEVERE: End event threw exception
>> java.lang.reflect.InvocationTargetException
>> at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source)
>> 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 CentroidGenerator.main(CentroidGenerator.java:137)
>> Caused by: java.lang.NullPointerException
>> at CentroidGenerator.nextItem(CentroidGenerator.java:62)
>>  ... 19 more
>> Exception in thread "main" 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 CentroidGenerator.main(CentroidGenerator.java:137)
>> Caused by: java.lang.NullPointerException
>> at CentroidGenerator.nextItem(CentroidGenerator.java:62)
>> at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source)
>>  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)
>>  ... 12 more
>>
>> thanks
>>
>
>

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