RUM-14581: Redirect TraceStructureWriter default output from stderr to stdout#3191
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…o stdout The default stream (used when no file is specified) was System.err, causing trace structure debug output to flood STANDARD_ERROR during test runs. This is informational data, not error output. The close() guard is updated accordingly to avoid closing System.out.
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Codecov Report❌ Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## develop #3191 +/- ##
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+ Coverage 71.31% 71.32% +0.01%
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Files 929 929
Lines 34442 34442
Branches 5813 5813
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+ Hits 24562 24564 +2
+ Misses 8247 8245 -2
Partials 1633 1633
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hamorillo
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February 20, 2026 09:50
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What does this PR do?
Changes the default output stream in
TraceStructureWriterfromSystem.errtoSystem.out, and updates theclose()guard accordingly. This eliminates noisySTANDARD_ERRORoutput during test runs.You can see the difference between this report (before this PR) and the PR one.
Motivation
After #3163 enabled
TestLogEvent.STANDARD_ERRORin the JUnit configuration, pre-existingSystem.errusage inTraceStructureWriterbecame visible as noisy output during test runs. The trace structure output is informational/debug data, not error output, so it belongs on stdout.Additional Notes
TraceStructureWriteris only instantiated byListWriter(a test-only writer), so this has no production impact.Review checklist (to be filled by reviewers)