Problem:

Why does creating a new issue throw a "HTTP 500 Servlet" and Java Exception error?

Resolution:

ANSWER
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The above error message can occur when attempting to create a new issue/defect after you have imported a database from an older version of Issue Manager into Issue Manager version 4.0. The problem occurs if prior to importing the database you have created a custom field containing an empty/un-populated list.

A workaround is to remove the custom field after import; if the list is empty then no data could have been entered for any issue in this custom field.

This issue will be resolved in the next release of Issue Manager.