Thread: End Element exception reading XML file

Hi Guys,

I have an issue with reading an XML file that contains several elements.
The application will try to read the elements but on a certain point the application can't load the next start element. At least I think this is the issue.

I get the following error:
------------------------------------------------------------------------------
Start document
Exception in thread "main" java.lang.NullPointerException
at Test03.endElement(Test03.java:135)
at com.sun.org.apache.xerces.internal.parsers.Abstrac tSAXParser.endElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumen tFragmentScannerImpl.scanEndElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumen tFragmentScannerImpl$FragmentContentDriver.next(Un known Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumen tScannerImpl.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocum entScannerImpl.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumen tFragmentScannerImpl.scanDocument(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Co nfiguration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Co nfiguration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XMLPars er.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.Abstrac tSAXParser.parse(Unknown Source)
at Test03.main(Test03.java:46)
------------------------------------------------------------------------------

Can anybody tell me what I'm doing wrong here?
For the easy part of it I included the files as an attachment to the post.

Test03.zip

Please can somebody help me I can't find why this error occurs.