Avoid final field modification in JUnit5 instrumentation

[daniel-mohedano]

What Does This Do

• Avoids final field modifications in JUnit5 instrumentation by:
  • Building a fresh TestTask for every retry, reusing the original parent context, instead of reusing and modifying the original test task. This approach is only supported for versions 5.3.1+.
  • Introducing a new TestDescriptor cloning method based on JupiterTestDescriptor#copyIncludingDescendants(UnaryOperator<UniqueId>)}, which also avoids manually setting the generated uniqueId after the cloning. This approach is only supported for versions 5.13+.

Motivation

Avoid failures in future JDKs due to JEP 500: Prepare to Make Final Mean Final.

Additional Notes

Running an example project on JDK26 with JAVA_TOOL_OPTIONS=--illegal-final-field-mutation=debug produced the following logs:

Final field testDescriptor in class org.junit.platform.engine.support.hierarchical.NodeTestTask has been unreflected for mutation ...
Final field node in class org.junit.platform.engine.support.hierarchical.NodeTestTask has been unreflected for mutation ...
Final field uniqueId in class org.junit.platform.engine.support.descriptor.AbstractTestDescriptor has been unreflected for mutation ...
Final field interceptorCall in class org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor has been mutated reflectively ...
Final field methodInfo in class org.junit.jupiter.engine.descriptor.MethodBasedTestDescriptor has been mutated reflectively ...
Final field configuration in class org.junit.jupiter.engine.descriptor.JupiterTestDescriptor has been mutated reflectively ...
...

The build containing the fix doesn't produce the logs.

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  • Get more information in this doc

Jira ticket: SDTEST-3867

[cit-pr-commenter-54b7da]

Test Environment - sbt-scalatest

Job Status: 🟢 success

Scenario	This PR (%)	7d median	Δ 7d	30d median	Δ 30d	runs (7d/30d)
agent	56.69	54.33	$\color{red}{\blacktriangle}$ +2.36	55.43	$\color{red}{\blacktriangle}$ +1.26	46/188
agentEvpProxy	55.01	n/a	n/a	n/a	n/a	-

Baseline: median of @test.tracer_overhead on main (gitlab) over the last 7/30 days, per OSS project & scenario. Δ = this PR − baseline median; red ▲ = more overhead, green ▽ = less overhead than baseline.

[cit-pr-commenter-54b7da]

Test Environment - nebula-release-plugin

Job Status: 🟢 success

Scenario	This PR (%)	7d median	Δ 7d	30d median	Δ 30d	runs (7d/30d)
agent	37.55	36.42	$\color{red}{\blacktriangle}$ +1.13	36.42	$\color{red}{\blacktriangle}$ +1.13	23/91
agentless	37.69	35.70	$\color{red}{\blacktriangle}$ +1.99	35.70	$\color{red}{\blacktriangle}$ +1.99	23/91
agentlessCodeCoverage	44.57	44.48	$\color{red}{\blacktriangle}$ +0.09	44.48	$\color{red}{\blacktriangle}$ +0.09	23/91
agentlessLineCoverage	76.92	74.82	$\color{red}{\blacktriangle}$ +2.10	74.82	$\color{red}{\blacktriangle}$ +2.10	22/90

Baseline: median of @test.tracer_overhead on main (gitlab) over the last 7/30 days, per OSS project & scenario. Δ = this PR − baseline median; red ▲ = more overhead, green ▽ = less overhead than baseline.

[cit-pr-commenter-54b7da]

Test Environment - netflix-zuul

Job Status: 🟢 success

Scenario	This PR (%)	7d median	Δ 7d	30d median	Δ 30d	runs (7d/30d)
agent	87.88	86.07	$\color{red}{\blacktriangle}$ +1.81	86.07	$\color{red}{\blacktriangle}$ +1.81	24/130
agentless	81.38	81.05	$\color{red}{\blacktriangle}$ +0.33	81.05	$\color{red}{\blacktriangle}$ +0.33	23/129
agentlessCodeCoverage	96.01	95.12	$\color{red}{\blacktriangle}$ +0.89	95.12	$\color{red}{\blacktriangle}$ +0.89	23/127
agentlessLineCoverage	111.63	111.62	$\color{red}{\blacktriangle}$ +0.01	111.62	$\color{red}{\blacktriangle}$ +0.01	22/126

Baseline: median of @test.tracer_overhead on main (gitlab) over the last 7/30 days, per OSS project & scenario. Δ = this PR − baseline median; red ▲ = more overhead, green ▽ = less overhead than baseline.

[cit-pr-commenter-54b7da]

Test Environment - pass4s

Job Status: 🟢 success

Scenario	This PR (%)	7d median	Δ 7d	30d median	Δ 30d	runs (7d/30d)
agent	15.39	9.92	$\color{red}{\blacktriangle}$ +5.47	9.92	$\color{red}{\blacktriangle}$ +5.47	24/94
agentless	11.90	10.13	$\color{red}{\blacktriangle}$ +1.77	9.92	$\color{red}{\blacktriangle}$ +1.98	24/95
agentlessCodeCoverage	18.25	17.03	$\color{red}{\blacktriangle}$ +1.22	17.73	$\color{red}{\blacktriangle}$ +0.52	22/93

Baseline: median of @test.tracer_overhead on main (gitlab) over the last 7/30 days, per OSS project & scenario. Δ = this PR − baseline median; red ▲ = more overhead, green ▽ = less overhead than baseline.

[cit-pr-commenter-54b7da]

Test Environment - reactive-streams-jvm

Job Status: 🟢 success

Scenario	This PR (%)	7d median	Δ 7d	30d median	Δ 30d	runs (7d/30d)
agent	19.69	21.65	$\color{green}{\blacktriangledown}$ -1.96	21.65	$\color{green}{\blacktriangledown}$ -1.96	26/143
agentless	17.38	18.82	$\color{green}{\blacktriangledown}$ -1.44	18.82	$\color{green}{\blacktriangledown}$ -1.44	25/140
agentlessCodeCoverage	18.13	19.59	$\color{green}{\blacktriangledown}$ -1.46	19.99	$\color{green}{\blacktriangledown}$ -1.86	25/140
agentlessLineCoverage	28.07	29.82	$\color{green}{\blacktriangledown}$ -1.75	29.82	$\color{green}{\blacktriangledown}$ -1.75	24/140

Baseline: median of @test.tracer_overhead on main (gitlab) over the last 7/30 days, per OSS project & scenario. Δ = this PR − baseline median; red ▲ = more overhead, green ▽ = less overhead than baseline.

[cit-pr-commenter-54b7da]

Test Environment - jolokia

Job Status: 🟢 success

Scenario	This PR (%)	7d median	Δ 7d	30d median	Δ 30d	runs (7d/30d)
agent	91.25	93.23	$\color{green}{\blacktriangledown}$ -1.98	93.23	$\color{green}{\blacktriangledown}$ -1.98	27/96
agentless	86.66	89.58	$\color{green}{\blacktriangledown}$ -2.92	89.58	$\color{green}{\blacktriangledown}$ -2.92	26/96
agentlessCodeCoverage	96.15	99.00	$\color{green}{\blacktriangledown}$ -2.85	99.00	$\color{green}{\blacktriangledown}$ -2.85	23/93
agentlessLineCoverage	98.49	99.00	$\color{green}{\blacktriangledown}$ -0.51	99.00	$\color{green}{\blacktriangledown}$ -0.51	23/93

Baseline: median of @test.tracer_overhead on main (gitlab) over the last 7/30 days, per OSS project & scenario. Δ = this PR − baseline median; red ▲ = more overhead, green ▽ = less overhead than baseline.

[cit-pr-commenter-54b7da]

Test Environment - okhttp

Job Status: 🟢 success

Scenario	This PR (%)	7d median	Δ 7d	30d median	Δ 30d	runs (7d/30d)
agent	17.94	19.20	$\color{green}{\blacktriangledown}$ -1.26	19.59	$\color{green}{\blacktriangledown}$ -1.65	26/96
agentless	19.33	18.82	$\color{red}{\blacktriangle}$ +0.51	19.20	$\color{red}{\blacktriangle}$ +0.13	25/98
agentlessCodeCoverage	23.41	22.09	$\color{red}{\blacktriangle}$ +1.32	22.09	$\color{red}{\blacktriangle}$ +1.32	25/94
agentlessLineCoverage	44.67	44.48	$\color{red}{\blacktriangle}$ +0.19	44.48	$\color{red}{\blacktriangle}$ +0.19	28/97

Baseline: median of @test.tracer_overhead on main (gitlab) over the last 7/30 days, per OSS project & scenario. Δ = this PR − baseline median; red ▲ = more overhead, green ▽ = less overhead than baseline.

[cit-pr-commenter-54b7da]

Test Environment - sonar-java

Job Status: 🟢 success

Scenario	This PR (%)	7d median	Δ 7d	30d median	Δ 30d	runs (7d/30d)
agent	-0.16	24.91	$\color{green}{\blacktriangledown}$ -25.07	16.04	$\color{green}{\blacktriangledown}$ -16.20	26/96
agentless	25.34	19.99	$\color{red}{\blacktriangle}$ +5.35	15.11	$\color{red}{\blacktriangle}$ +10.23	25/95
agentlessCodeCoverage	86.10	95.12	$\color{green}{\blacktriangledown}$ -9.02	87.80	$\color{green}{\blacktriangledown}$ -1.70	25/95
agentlessLineCoverage	95.98	133.64	$\color{green}{\blacktriangledown}$ -37.66	144.77	$\color{green}{\blacktriangledown}$ -48.79	24/94

Baseline: median of @test.tracer_overhead on main (gitlab) over the last 7/30 days, per OSS project & scenario. Δ = this PR − baseline median; red ▲ = more overhead, green ▽ = less overhead than baseline.