Bug 55923

Summary:	[PATCH] Xml data export leads to a NPE when sorting output data
Product:	POI	Reporter:	Marc <hae>
Component:	XSSF	Assignee:	POI Developers List <dev>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	P2
Version:	3.9-FINAL
Target Milestone:	---
Hardware:	PC
OS:	All
Attachments:	[PATCH] fixes the mentioned problem [PATCH] fixes the mentioned problem [PATCH] fixes the mentioned problem [PATCH] fixes the mentioned problem

Description Marc 2013-12-23 10:22:46 UTC

The class XSSFExportToXml fails when comparing two similiar xPaths. It continous comparing the xPath nodes after the last common node which then leads to a null pointer exception.

Example
-----------

Given to xPaths:

1. A/B/C/E
2. A/B/D/E

Expected behaviour: Iterating up to node B. Testing if C or D appears first in the schema xml.

Actual beahviour: It continous comparing node E after node C/D whichs then leads to a NPE.

I'm going to provide a patch for this issue.

Comment 1 Marc 2013-12-23 11:37:49 UTC

Created attachment 31141 [details]
[PATCH] fixes the mentioned problem

including an unit test

Comment 2 Marc 2013-12-23 11:47:48 UTC

Created attachment 31142 [details]
[PATCH] fixes the mentioned problem

- I had to submit the patch again, because bugzilla didn't detected the file type correctly
- Patch includes an unit test which proves the problem

Comment 3 Marc 2013-12-23 11:51:47 UTC

Created attachment 31143 [details]
[PATCH] fixes the mentioned problem

Comment 4 Marc 2013-12-23 13:48:22 UTC

Created attachment 31144 [details]
[PATCH] fixes the mentioned problem

- Renamed the excel test file to match bugzilla number (55923)

Comment 5 Dominik Stadler 2014-02-03 20:57:34 UTC

This is now also applied to trunk (post 3.10!) via r1564050, thanks again for all the nicely built patches.