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From "Gabriel Gruber (JIRA)" <>
Subject [jira] Created: (COCOON-2255) Excel Generation fails when called 2nd time
Date Tue, 14 Apr 2009 20:05:15 GMT
Excel Generation fails when called 2nd time

                 Key: COCOON-2255
             Project: Cocoon
          Issue Type: Bug
          Components: Blocks: POI
    Affects Versions: 2.2
            Reporter: Gabriel Gruber

if an excel generation is called a 2nd time, the following exception is thrown:

Caused by: Duplicate name "Workbook"
	at org.apache.poi.poifs.filesystem.DirectoryNode.createDocument(
	at org.apache.poi.poifs.filesystem.DirectoryNode.createDocument(
	at org.apache.poi.poifs.filesystem.POIFSFileSystem.createDocument(
	at org.apache.cocoon.components.elementprocessor.impl.poi.hssf.elements.Workbook.write(
	at org.apache.cocoon.components.elementprocessor.impl.poi.hssf.elements.EPWorkbook.endProcessing(
	at org.apache.cocoon.serialization.ElementProcessorSerializer.endElement(

some infos from the mailinglist to reproduce the problem:

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