How to know the JasperReports version from binary file

[emilio.cuberos]

Is there a way to know which version has it been used to compile/generate a .jasper binary file?

I mean, if you only have the .jrxml and the .jasper files and no other information. Is it possible to recognize their version? 

[Raphaël Peguet]

There is a line at the top of the .jrxml file telling the JSS and JRL versions used to create the report, so if you look at the source of the report in Jaspersoft Studio, then you should get the info.

[jgust]

Raphaël is correct about an XML comment line indicating the JSS and JRL used to create the file but you must look at that line using a text editor that is not Jasper Studio.  The reason is that Jasper Studio will update that comment as it opens the file skewing the results.

 

I verified this by opening a 6.14.0 file in a 6.20.6 studio and then looked at the source.

Comment in text editor

<!-- Created with Jaspersoft Studio version 6.14.0.final using JasperReports Library version 6.14.0-2ab0d8625be255bf609c78e1181801213e51db8f  -->

After opening on 6.20.6 Studio and looking at the source tab

<!-- Created with Jaspersoft Studio version 6.20.6.final using JasperReports Library version 6.20.6-5c96b6aa8a39ac1dc6b6bea4b81168e16dd39231 -->

 

[Raphaël Peguet]

On 1/27/2024 at 4:09 PM, jgust said:

Raphaël is correct about an XML comment line indicating the JSS and JRL used to create the file but you must look at that line using a text editor that is not Jasper Studio.  The reason is that Jasper Studio will update that comment as it opens the file skewing the results.

 

I verified this by opening a 6.14.0 file in a 6.20.6 studio and then looked at the source.

Comment in text editor

<!-- Created with Jaspersoft Studio version 6.14.0.final using JasperReports Library version 6.14.0-2ab0d8625be255bf609c78e1181801213e51db8f  -->

After opening on 6.20.6 Studio and looking at the source tab

<!-- Created with Jaspersoft Studio version 6.20.6.final using JasperReports Library version 6.20.6-5c96b6aa8a39ac1dc6b6bea4b81168e16dd39231 -->

 

I had missed that but that's right. JSS v. 9 didn't fix that so I brought this up to the team

[Giulio Toffoli]

When you switch to the source tab, you are looking at what the file would look like if saved, not the content of the actual loaded file. The source shown in the tab is generated on the fly based on the current model in the designer. You can easily check this by adding a comment to your jrxml with a text editor and load the jrxml in the designer, you will see that in the tab source your comment is gone.
The comment show in the source tab will be save only if you save the file.
There is currently no reliable way to check with which version of JRL a jrxml or as jasper file has been created. If you need this information, you can still store it in a report property and read it with JasperReports itself.