java.lang.NoClassDefFoundError: Could not initialize class net.sf.jasperreports.extensions.ExtensionsEnvironment

Changed Assigned User from - to @User_306070

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do you have a jasperreports library in your classpath?we already provide a jasperreports library inside the plugin, you should remove yours from the classpath

Changed Assigned User from @User_306070 to @anonymous

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Yes, I have one. However, if I remove the jasperreports jar from the classpath then my project will be filled with errors due to the missing jasperreports classes. How do you avoid that?

right click on the project, and add JasperReports Nature,

or go to Project->Properties->Libraries push Add Library and select JasperReports Libraries

 

this will add the same jars, in this way you will see it from sources and this exception should be avoid

 

tell me if it helps

I removed the JasperReport jar file from the project and changed the project to have JasperReports Nature. This corrected the errors in the project. I then quit and restarted. Tried opening an existing jrxml file and also tried a new report. Both attempts failed. Looking at the log file from Eclipse, the errors were similar to the previous but there were some additional errors that may be informative. I am including the entire log file as an attachment.

Changed Assigned User from @anonymous to @chicuslavic

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it's possible to remove all sensitive information from the workspace, archive it and send me by email?

Changed Status from New to Feedback Requested

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By the workspace, you mean the metadata folder and the project? I have about a 16-18 projects in the workspace. How about if I create a new workspace, move the offending project into it, verify it still has the problem and send that workspace to you?

 

EDITED: I have created the workspace but it is too large to send. I would like to send you privately the url to the zipped workspace on my Dropbox account. Can you provide me an email address to use?

I need a workspace with only one project, you can remove all unneeded files from the workspace, with .metadata and project .* files

 

you can copy yours remove 15-17 projects, from inside the project remove the files, you can keep a report there for test

 

make a zip, and send me by email, I'll study your configuration and propose a solution

 

Thank you

any news about it after over two months?

The problem went away when I modified the J2EE perspective. Unfortunately, I cannot remember exactly what changes I made.

unfortunately on kepler jee edition I cannot get rid of this problem - so I have to use dedicated juno bundled ...

Changed Resolution from Open to Fixed

Changed Status from Feedback Requested to Resolved

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Closing, since this kind of problems should be fixed since it was opened.JSS plugin was tested in different Eclipse 4 versions. No similar issues were verified.Open a new bug if needed.