Skip to main content

This content has been archived and is no longer being updated. Links may not function; however, this content may be relevant to outdated versions of the product.

Support Article

java.util.ConcurrentModificationException while editing report



Exception generated when editing the report.

Error Messages


Steps to Reproduce

1. Run the report from Report Browser.
2. Click on Edit Report button.

Root Cause

Issue is generated while rendering the data in Edit Report form.


Un-check the "Display actual data while editing report" option under Report Viewer tab. Therefore, Actual data is not displayed when Edit Report option is performed.

Published June 10, 2015 - Updated October 8, 2020

Was this useful?

0% found this useful

Have a question? Get answers now.

Visit the Collaboration Center to ask questions, engage in discussions, share ideas, and help others.

Did you find this content helpful?

Want to help us improve this content?

We'd prefer it if you saw us at our best.

Pega Community has detected you are using a browser which may prevent you from experiencing the site as intended. To improve your experience, please update your browser.

Close Deprecation Notice
Contact us