Database Management

Error 500 and empty variable list when editing alert email templates in DPA

Editing an alert email template throws a 500 error and the variable list is empty.

First published date

2/13/2026 6:03 PM

Last published date

2/13/2026 6:03 PM

Overview

In some DPA 2025.2 environments, attempting to create or edit an alert email template causes:

  • The Variables panel remains empty

  • An HTTP 500 – Internal Server Error appears in the UI when loading template variables.

This is a known defect in DPA 2025.2 and has been fixed in DPA 2025.2.1 and later maintenance releases.

 

Product section

Database Performance Analyzer

Cause

A bug in the alert email template variables REST endpoint in DPA 2025.2 causes an internal Java reflection error (InaccessibleObjectException) when the UI attempts to load the list of available variables for a template.

This results in the 500 error and prevents the variables list from rendering in the email template editor.

Resolution

The issue is resolved in DPA 2025.2.1 and later releases.

To fix the problem:

  1. Upgrade DPA to 2025.2.1 or any later supported version (for example, 2025.3) following the standard DPA upgrade procedure documented in the product guides and release notes.

  2. After the upgrade:

    • Log back into DPA.

    • Go to Alerts → Manage alerts → Email Templates.

    • Open or create an email template and confirm that the Variables panel now loads correctly and no 500 error appears.

There is no supported long‑term workaround on 2025.2; upgrade is required to permanently restore normal behavior.