[NMS-6944] When building the "Early Morning Report" I get a "null" dataset argument Exception.

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Details

Type: Bug
Status: Resolved (View Workflow)
Priority: Blocker
Resolution: Fixed
Affects Version/s: 1.12.9
Fix Version/s: 17.0.0
Component/s: Reports / Statsd
Security Level: Default (Default Security Scheme)
Labels:
None

Sprint:
Newts - Phase 5

Description

Sometimes you get a

"null" dataset argument

Exception when building the "Early Morning Report".

It is not very easy to reproduce. Sometimes you can create the report without any problems but sometimes you get this exception.

Anyways I was able to find the cause for this.
It seems that JasperReports uses JFreeChart to draw the charts.
And they had a NP-Problem --> http://www.jfree.org/phpBB2/viewtopic.php?f=3&t=27265&sid=51501c9d3d7401b482c07282e117d153

It seems that there is a fix in version 1.0.13 of jfreechart.
However JasperReports uses JFreeChart 1.0.12, even in the latest JasperReports version (5.6.1).