Test Results removes any line containing `org.junit.Test`

[Meerschwein]

package com.example;

import static org.junit.Assert.fail;

import org.junit.Test;

public class T {
    @Test
    public void t() {
        fail("before\n============ org.junit.Test ============\nafter");
    }
}

[github-actions]

Hi Merlin Volkmer (@Meerschwein), I'm an AI Support assistant here to help with your issue. While the team reviews your request, I wanted to provide some possible tips and documentation that might help you in the meantime.

It looks like the Test Results panel’s built-in stack-trace filter is stripping out any line that matches org\.junit\..* (including your message line). There’s no user setting yet to toggle this filter, but you can work around it:

• Escape or obfuscate the string so it no longer matches the filter, e.g.:

  fail("before\norg\.junit\.Test: after".replace("org.junit.Test", "org\.junit\.Test"));

  or insert a zero-width space:

  fail("before\norg.junit.\u200BTest\nafter");

Track the underlying filter issue here:

• [Request] Hide the JUnit Callstack from the stacktrace #1281 (comment)

Other references with low confidence

• Refactor The Rendering of Output In The Test Results Panel
  Workaround: click the trash-can icon to clear the panel between runs.
  Refactor The Rendering of Output In The Test Results Panel #1618 (comment)

• "Test Results" panel showing empty spaces between letters
  General formatting glitch in the Test Results view.
  "Test Results" panel showing empty spaces between letters #1663

The team will respond to your issue shortly. I hope these suggestions are helpful in the meantime. If this comment helped you, please give it a 👍. If the suggestion was not helpful or incorrect, please give it a 👎. Your feedback helps us improve!

[wenytang-ms]

we’ve released a prerelease version 0.44.2026030602 of test-runner-for-java, which fixes the issue you reported. Please install this version together with the latest prerelease of vscode-gradle and help verify the fix.

Merlin Volkmer (@Meerschwein)

[wenytang-ms]

Merlin Volkmer (@Meerschwein)
I'm going to close this issue, please reopen this issue once this issue repro.