Avoid final field mutation in CapturedSnapshotTest #10440

sarahchen6 · 2026-01-23T20:13:20Z

What Does This Do

Add a test-only TEST_INSTANCE to the CorrelationAccess class. Now instead of mutating a final field in CapturedSnapshotTest to introduce a spy, we can set the spy to be a non-final TEST_INSTANCE.

Motivation

Mutating final fields will introduce warnings starting in Java 26 and be disallowed in a later release (JEP 500).

Additional Notes

Contributor Checklist

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Assign the type: and (comp: or inst:) labels in addition to any useful labels
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Use solves instead, and assign the PR milestone to the issue
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Jira ticket: https://datadoghq.atlassian.net/browse/APMLP-594

pr-commenter · 2026-01-23T21:12:34Z

Debugger benchmarks

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
ci_job_date	1769458299	1769458644
end_time	2026-01-26T20:12:59	2026-01-26T20:18:43
git_branch	master	sarahchen6/refactor-final-field-mutations
git_commit_sha	`a34cb64`	`b5ee6b5`
start_time	2026-01-26T20:11:39	2026-01-26T20:17:25

See matching parameters

	Baseline	Candidate
ci_job_id	1378116412	1378116412
ci_pipeline_id	92909152	92909152
cpu_model	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz
git_commit_date	1769457558	1769457558

Summary

Found 0 performance improvements and 0 performance regressions! Performance is the same for 9 metrics, 6 unstable metrics.

See unchanged results

scenario	Δ mean agg_http_req_duration_min	Δ mean agg_http_req_duration_p50	Δ mean agg_http_req_duration_p75	Δ mean agg_http_req_duration_p99	Δ mean throughput
scenario:noprobe	unstable [-67.396µs; +21.166µs] or [-23.006%; +7.225%]	unstable [-74.876µs; +29.083µs] or [-22.452%; +8.721%]	unstable [-91.435µs; +37.109µs] or [-26.032%; +10.565%]	unstable [-572.725µs; +201.599µs] or [-50.806%; +17.884%]	same
scenario:basic	same	same	same	unstable [-93.176µs; +129.871µs] or [-12.216%; +17.026%]	unstable [-86.814op/s; +229.062op/s] or [-3.299%; +8.704%]
scenario:loop	same	same	same	same	same

Request duration reports for reports

gantt
    title reports - request duration [CI 0.99] : candidate=None, baseline=None
    dateFormat X
    axisFormat %s
section baseline
noprobe (333.489 µs) : 269, 398
.   : milestone, 333,
basic (278.035 µs) : 272, 284
.   : milestone, 278,
loop (8.959 ms) : 8954, 8963
.   : milestone, 8959,
section candidate
noprobe (310.592 µs) : 283, 338
.   : milestone, 311,
basic (279.672 µs) : 271, 289
.   : milestone, 280,
loop (8.962 ms) : 8958, 8966
.   : milestone, 8962,

baseline results

Scenario	Request median duration [CI 0.99]
noprobe	333.489 µs [269.063 µs, 397.916 µs]
basic	278.035 µs [272.469 µs, 283.601 µs]
loop	8.959 ms [8.954 ms, 8.963 ms]

candidate results

Scenario	Request median duration [CI 0.99]
noprobe	310.592 µs [283.256 µs, 337.929 µs]
basic	279.672 µs [270.733 µs, 288.612 µs]
loop	8.962 ms [8.958 ms, 8.966 ms]

pr-commenter · 2026-01-23T21:39:04Z

Benchmarks

⚠️ Warning: Baseline build not found for merge-base commit. Comparing against the latest commit on master instead.

Startup

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	sarahchen6/refactor-final-field-mutations
git_commit_date	1769453707	1769457558
git_commit_sha	`a34cb64`	`b5ee6b5`
release_version	1.59.0-SNAPSHOT~a34cb643aa	1.54.0-SNAPSHOT~b5ee6b5b66

See matching parameters

	Baseline	Candidate
application	insecure-bank	insecure-bank
ci_job_date	1769459478	1769459478
ci_job_id	1378116400	1378116400
ci_pipeline_id	92909152	92909152
cpu_model	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz
kernel_version	Linux runner-zfyrx7zua-project-304-concurrent-0-1cy5qq5q 6.8.0-1031-aws #33~22.04.1-Ubuntu SMP Thu Jun 26 14:22:30 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux	Linux runner-zfyrx7zua-project-304-concurrent-0-1cy5qq5q 6.8.0-1031-aws #33~22.04.1-Ubuntu SMP Thu Jun 26 14:22:30 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
module	Agent	Agent
parent	None	None

Summary

Found 0 performance improvements and 8 performance regressions! Performance is the same for 51 metrics, 6 unstable metrics.

scenario	Δ mean execution_time	candidate mean execution_time	baseline mean execution_time
scenario:startup:insecure-bank:iast:GlobalTracer	worse [+10.077ms; +12.757ms] or [+4.066%; +5.147%]	259.265ms	247.848ms
scenario:startup:insecure-bank:tracing:GlobalTracer	worse [+27.731ms; +29.856ms] or [+10.754%; +11.578%]	286.663ms	257.869ms
scenario:startup:petclinic:appsec:GlobalTracer	worse [+9.179ms; +16.350ms] or [+3.654%; +6.508%]	263.997ms	251.232ms
scenario:startup:petclinic:iast:GlobalTracer	worse [+9.291ms; +11.633ms] or [+3.743%; +4.686%]	258.707ms	248.245ms
scenario:startup:petclinic:profiling:ProfilingAgent	worse [+4.255ms; +9.094ms] or [+4.634%; +9.906%]	98.475ms	91.801ms
scenario:startup:petclinic:profiling:GlobalTracer	worse [+8.649ms; +17.078ms] or [+4.008%; +7.913%]	228.678ms	215.814ms
scenario:startup:petclinic:profiling:Profiling	worse [+4.238ms; +9.089ms] or [+4.587%; +9.837%]	99.059ms	92.396ms
scenario:startup:petclinic:tracing:GlobalTracer	worse [+22.642ms; +28.759ms] or [+8.718%; +11.073%]	285.427ms	259.726ms

Startup time reports for petclinic

gantt
    title petclinic - global startup overhead: candidate=1.54.0-SNAPSHOT~b5ee6b5b66, baseline=1.59.0-SNAPSHOT~a34cb643aa

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.101 s) : 0, 1101053
Total [baseline] (10.704 s) : 0, 10703535
Agent [candidate] (1.086 s) : 0, 1085515
Total [candidate] (10.797 s) : 0, 10797342
section appsec
Agent [baseline] (1.272 s) : 0, 1272044
Total [baseline] (11.164 s) : 0, 11163573
Agent [candidate] (1.278 s) : 0, 1278164
Total [candidate] (11.034 s) : 0, 11034498
section iast
Agent [baseline] (1.232 s) : 0, 1232442
Total [baseline] (11.136 s) : 0, 11136077
Agent [candidate] (1.226 s) : 0, 1226342
Total [candidate] (11.045 s) : 0, 11045457
section profiling
Agent [baseline] (1.211 s) : 0, 1210549
Total [baseline] (10.959 s) : 0, 10959191
Agent [candidate] (1.231 s) : 0, 1231074
Total [candidate] (11.003 s) : 0, 11002993

baseline results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.101 s	-
Agent	appsec	1.272 s	170.991 ms (15.5%)
Agent	iast	1.232 s	131.389 ms (11.9%)
Agent	profiling	1.211 s	109.496 ms (9.9%)
Total	tracing	10.704 s	-
Total	appsec	11.164 s	460.038 ms (4.3%)
Total	iast	11.136 s	432.542 ms (4.0%)
Total	profiling	10.959 s	255.656 ms (2.4%)

candidate results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.086 s	-
Agent	appsec	1.278 s	192.649 ms (17.7%)
Agent	iast	1.226 s	140.827 ms (13.0%)
Agent	profiling	1.231 s	145.56 ms (13.4%)
Total	tracing	10.797 s	-
Total	appsec	11.034 s	237.156 ms (2.2%)
Total	iast	11.045 s	248.116 ms (2.3%)
Total	profiling	11.003 s	205.651 ms (1.9%)

gantt
    title petclinic - break down per module: candidate=1.54.0-SNAPSHOT~b5ee6b5b66, baseline=1.59.0-SNAPSHOT~a34cb643aa

    dateFormat X
    axisFormat %s
section tracing
crashtracking [baseline] (1.184 ms) : 0, 1184
crashtracking [candidate] (1.178 ms) : 0, 1178
BytebuddyAgent [baseline] (659.772 ms) : 0, 659772
BytebuddyAgent [candidate] (649.621 ms) : 0, 649621
GlobalTracer [baseline] (259.726 ms) : 0, 259726
GlobalTracer [candidate] (285.427 ms) : 0, 285427
AppSec [baseline] (33.279 ms) : 0, 33279
AppSec [candidate] (32.624 ms) : 0, 32624
Debugger [baseline] (68.533 ms) : 0, 68533
Debugger [candidate] (66.416 ms) : 0, 66416
Remote Config [baseline] (626.11 µs) : 0, 626
Remote Config [candidate] (610.953 µs) : 0, 611
Telemetry [baseline] (9.159 ms) : 0, 9159
Telemetry [candidate] (8.913 ms) : 0, 8913
Flare Poller [baseline] (3.693 ms) : 0, 3693
Flare Poller [candidate] (5.26 ms) : 0, 5260
AgentMeter [baseline] (29.315 ms) : 0, 29315
section appsec
crashtracking [baseline] (1.169 ms) : 0, 1169
crashtracking [candidate] (1.191 ms) : 0, 1191
BytebuddyAgent [baseline] (692.864 ms) : 0, 692864
BytebuddyAgent [candidate] (696.744 ms) : 0, 696744
GlobalTracer [baseline] (251.232 ms) : 0, 251232
GlobalTracer [candidate] (263.997 ms) : 0, 263997
AppSec [baseline] (173.788 ms) : 0, 173788
AppSec [candidate] (174.338 ms) : 0, 174338
Debugger [baseline] (67.374 ms) : 0, 67374
Debugger [candidate] (67.604 ms) : 0, 67604
Remote Config [baseline] (690.591 µs) : 0, 691
Remote Config [candidate] (696.679 µs) : 0, 697
Telemetry [baseline] (9.472 ms) : 0, 9472
Telemetry [candidate] (9.297 ms) : 0, 9297
Flare Poller [baseline] (3.598 ms) : 0, 3598
Flare Poller [candidate] (3.617 ms) : 0, 3617
AgentMeter [baseline] (11.945 ms) : 0, 11945
IAST [baseline] (24.392 ms) : 0, 24392
IAST [candidate] (24.988 ms) : 0, 24988
section iast
crashtracking [baseline] (1.178 ms) : 0, 1178
crashtracking [candidate] (1.189 ms) : 0, 1189
BytebuddyAgent [baseline] (795.56 ms) : 0, 795560
BytebuddyAgent [candidate] (791.569 ms) : 0, 791569
GlobalTracer [baseline] (248.245 ms) : 0, 248245
GlobalTracer [candidate] (258.707 ms) : 0, 258707
AppSec [baseline] (32.593 ms) : 0, 32593
AppSec [candidate] (32.532 ms) : 0, 32532
Debugger [baseline] (68.632 ms) : 0, 68632
Debugger [candidate] (67.543 ms) : 0, 67543
Remote Config [baseline] (536.936 µs) : 0, 537
Remote Config [candidate] (533.107 µs) : 0, 533
Telemetry [baseline] (8.586 ms) : 0, 8586
Telemetry [candidate] (8.453 ms) : 0, 8453
Flare Poller [baseline] (3.468 ms) : 0, 3468
Flare Poller [candidate] (3.443 ms) : 0, 3443
AgentMeter [baseline] (11.276 ms) : 0, 11276
IAST [baseline] (26.956 ms) : 0, 26956
IAST [candidate] (26.985 ms) : 0, 26985
section profiling
crashtracking [baseline] (1.21 ms) : 0, 1210
crashtracking [candidate] (1.251 ms) : 0, 1251
BytebuddyAgent [baseline] (704.234 ms) : 0, 704234
BytebuddyAgent [candidate] (716.257 ms) : 0, 716257
GlobalTracer [baseline] (215.814 ms) : 0, 215814
GlobalTracer [candidate] (228.678 ms) : 0, 228678
AppSec [baseline] (32.471 ms) : 0, 32471
AppSec [candidate] (33.241 ms) : 0, 33241
Debugger [baseline] (67.451 ms) : 0, 67451
Debugger [candidate] (68.599 ms) : 0, 68599
Remote Config [baseline] (601.091 µs) : 0, 601
Remote Config [candidate] (615.606 µs) : 0, 616
Telemetry [baseline] (8.87 ms) : 0, 8870
Telemetry [candidate] (8.996 ms) : 0, 8996
Flare Poller [baseline] (9.288 ms) : 0, 9288
Flare Poller [candidate] (3.782 ms) : 0, 3782
AgentMeter [baseline] (8.842 ms) : 0, 8842
ProfilingAgent [baseline] (91.801 ms) : 0, 91801
ProfilingAgent [candidate] (98.475 ms) : 0, 98475
Profiling [baseline] (92.396 ms) : 0, 92396
Profiling [candidate] (99.059 ms) : 0, 99059

Startup time reports for insecure-bank

gantt
    title insecure-bank - global startup overhead: candidate=1.54.0-SNAPSHOT~b5ee6b5b66, baseline=1.59.0-SNAPSHOT~a34cb643aa

    dateFormat X
    axisFormat %s
section tracing
Agent [baseline] (1.092 s) : 0, 1091999
Total [baseline] (8.76 s) : 0, 8759732
Agent [candidate] (1.09 s) : 0, 1090115
Total [candidate] (8.756 s) : 0, 8756054
section iast
Agent [baseline] (1.23 s) : 0, 1229834
Total [baseline] (9.303 s) : 0, 9303096
Agent [candidate] (1.227 s) : 0, 1227403
Total [candidate] (9.315 s) : 0, 9314992

baseline results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.092 s	-
Agent	iast	1.23 s	137.835 ms (12.6%)
Total	tracing	8.76 s	-
Total	iast	9.303 s	543.365 ms (6.2%)

candidate results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.09 s	-
Agent	iast	1.227 s	137.288 ms (12.6%)
Total	tracing	8.756 s	-
Total	iast	9.315 s	558.938 ms (6.4%)

gantt
    title insecure-bank - break down per module: candidate=1.54.0-SNAPSHOT~b5ee6b5b66, baseline=1.59.0-SNAPSHOT~a34cb643aa

    dateFormat X
    axisFormat %s
section tracing
crashtracking [baseline] (1.19 ms) : 0, 1190
crashtracking [candidate] (1.18 ms) : 0, 1180
BytebuddyAgent [baseline] (654.501 ms) : 0, 654501
BytebuddyAgent [candidate] (653.153 ms) : 0, 653153
GlobalTracer [baseline] (257.869 ms) : 0, 257869
GlobalTracer [candidate] (286.663 ms) : 0, 286663
AppSec [baseline] (33.154 ms) : 0, 33154
AppSec [candidate] (32.94 ms) : 0, 32940
Debugger [baseline] (67.342 ms) : 0, 67342
Debugger [candidate] (64.95 ms) : 0, 64950
Remote Config [baseline] (631.608 µs) : 0, 632
Remote Config [candidate] (616.498 µs) : 0, 616
Telemetry [baseline] (9.033 ms) : 0, 9033
Telemetry [candidate] (8.971 ms) : 0, 8971
Flare Poller [baseline] (3.624 ms) : 0, 3624
Flare Poller [candidate] (6.075 ms) : 0, 6075
AgentMeter [baseline] (29.144 ms) : 0, 29144
section iast
crashtracking [baseline] (1.174 ms) : 0, 1174
crashtracking [candidate] (1.186 ms) : 0, 1186
BytebuddyAgent [baseline] (794.106 ms) : 0, 794106
BytebuddyAgent [candidate] (793.114 ms) : 0, 793114
GlobalTracer [baseline] (247.848 ms) : 0, 247848
GlobalTracer [candidate] (259.265 ms) : 0, 259265
AppSec [baseline] (33.75 ms) : 0, 33750
AppSec [candidate] (35.111 ms) : 0, 35111
Debugger [baseline] (67.044 ms) : 0, 67044
Debugger [candidate] (63.834 ms) : 0, 63834
Remote Config [baseline] (548.358 µs) : 0, 548
Remote Config [candidate] (538.044 µs) : 0, 538
Telemetry [baseline] (8.479 ms) : 0, 8479
Telemetry [candidate] (8.494 ms) : 0, 8494
Flare Poller [baseline] (3.442 ms) : 0, 3442
Flare Poller [candidate] (3.431 ms) : 0, 3431
AgentMeter [baseline] (11.257 ms) : 0, 11257
IAST [baseline] (26.8 ms) : 0, 26800
IAST [candidate] (27.133 ms) : 0, 27133

Load

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	sarahchen6/refactor-final-field-mutations
git_commit_date	1769453707	1769457558
git_commit_sha	`a34cb64`	`b5ee6b5`
release_version	1.59.0-SNAPSHOT~a34cb643aa	1.54.0-SNAPSHOT~b5ee6b5b66

See matching parameters

	Baseline	Candidate
application	insecure-bank	insecure-bank
ci_job_date	1769459976	1769459976
ci_job_id	1378116401	1378116401
ci_pipeline_id	92909152	92909152
cpu_model	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz
kernel_version	Linux runner-zfyrx7zua-project-304-concurrent-0-7ngpe3yu 6.8.0-1031-aws #33~22.04.1-Ubuntu SMP Thu Jun 26 14:22:30 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux	Linux runner-zfyrx7zua-project-304-concurrent-0-7ngpe3yu 6.8.0-1031-aws #33~22.04.1-Ubuntu SMP Thu Jun 26 14:22:30 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux

Summary

Found 0 performance improvements and 1 performance regressions! Performance is the same for 19 metrics, 16 unstable metrics.

scenario	Δ mean agg_http_req_duration_p50	Δ mean agg_http_req_duration_p95	Δ mean throughput	candidate mean agg_http_req_duration_p50	candidate mean agg_http_req_duration_p95	candidate mean throughput	baseline mean agg_http_req_duration_p50	baseline mean agg_http_req_duration_p95	baseline mean throughput
scenario:load:petclinic:profiling:high_load	worse [+0.509ms; +1.714ms] or [+2.741%; +9.218%]	unsure [+0.527ms; +1.942ms] or [+1.746%; +6.435%]	unstable [-36.142op/s; +14.767op/s] or [-14.677%; +5.997%]	19.701ms	31.417ms	235.562op/s	18.589ms	30.183ms	246.250op/s

Request duration reports for petclinic

gantt
    title petclinic - request duration [CI 0.99] : candidate=1.54.0-SNAPSHOT~b5ee6b5b66, baseline=1.59.0-SNAPSHOT~a34cb643aa
    dateFormat X
    axisFormat %s
section baseline
no_agent (18.348 ms) : 18157, 18539
.   : milestone, 18348,
appsec (18.727 ms) : 18535, 18919
.   : milestone, 18727,
code_origins (17.793 ms) : 17615, 17971
.   : milestone, 17793,
iast (17.825 ms) : 17648, 18002
.   : milestone, 17825,
profiling (18.956 ms) : 18768, 19144
.   : milestone, 18956,
tracing (17.797 ms) : 17622, 17972
.   : milestone, 17797,
section candidate
no_agent (19.151 ms) : 18956, 19346
.   : milestone, 19151,
appsec (18.374 ms) : 18187, 18561
.   : milestone, 18374,
code_origins (17.726 ms) : 17551, 17902
.   : milestone, 17726,
iast (17.721 ms) : 17544, 17897
.   : milestone, 17721,
profiling (19.819 ms) : 19618, 20021
.   : milestone, 19819,
tracing (18.155 ms) : 17976, 18335
.   : milestone, 18155,

baseline results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	18.348 ms [18.157 ms, 18.539 ms]	-
appsec	18.727 ms [18.535 ms, 18.919 ms]	378.924 µs (2.1%)
code_origins	17.793 ms [17.615 ms, 17.971 ms]	-554.444 µs (-3.0%)
iast	17.825 ms [17.648 ms, 18.002 ms]	-522.854 µs (-2.8%)
profiling	18.956 ms [18.768 ms, 19.144 ms]	608.193 µs (3.3%)
tracing	17.797 ms [17.622 ms, 17.972 ms]	-550.837 µs (-3.0%)

candidate results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	19.151 ms [18.956 ms, 19.346 ms]	-
appsec	18.374 ms [18.187 ms, 18.561 ms]	-777.276 µs (-4.1%)
code_origins	17.726 ms [17.551 ms, 17.902 ms]	-1.425 ms (-7.4%)
iast	17.721 ms [17.544 ms, 17.897 ms]	-1.43 ms (-7.5%)
profiling	19.819 ms [19.618 ms, 20.021 ms]	668.431 µs (3.5%)
tracing	18.155 ms [17.976 ms, 18.335 ms]	-995.5 µs (-5.2%)

Request duration reports for insecure-bank

gantt
    title insecure-bank - request duration [CI 0.99] : candidate=1.54.0-SNAPSHOT~b5ee6b5b66, baseline=1.59.0-SNAPSHOT~a34cb643aa
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.171 ms) : 1159, 1182
.   : milestone, 1171,
iast (3.269 ms) : 3224, 3314
.   : milestone, 3269,
iast_FULL (5.748 ms) : 5690, 5806
.   : milestone, 5748,
iast_GLOBAL (3.593 ms) : 3534, 3653
.   : milestone, 3593,
profiling (2.039 ms) : 2021, 2057
.   : milestone, 2039,
tracing (1.815 ms) : 1799, 1830
.   : milestone, 1815,
section candidate
no_agent (1.181 ms) : 1170, 1193
.   : milestone, 1181,
iast (3.304 ms) : 3256, 3353
.   : milestone, 3304,
iast_FULL (5.646 ms) : 5591, 5701
.   : milestone, 5646,
iast_GLOBAL (3.606 ms) : 3548, 3664
.   : milestone, 3606,
profiling (2.067 ms) : 2046, 2088
.   : milestone, 2067,
tracing (1.766 ms) : 1751, 1781
.   : milestone, 1766,

baseline results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	1.171 ms [1.159 ms, 1.182 ms]	-
iast	3.269 ms [3.224 ms, 3.314 ms]	2.099 ms (179.3%)
iast_FULL	5.748 ms [5.69 ms, 5.806 ms]	4.578 ms (391.1%)
iast_GLOBAL	3.593 ms [3.534 ms, 3.653 ms]	2.423 ms (207.0%)
profiling	2.039 ms [2.021 ms, 2.057 ms]	868.811 µs (74.2%)
tracing	1.815 ms [1.799 ms, 1.83 ms]	644.078 µs (55.0%)

candidate results

Variant	Request duration [CI 0.99]	Δ no_agent
no_agent	1.181 ms [1.17 ms, 1.193 ms]	-
iast	3.304 ms [3.256 ms, 3.353 ms]	2.123 ms (179.7%)
iast_FULL	5.646 ms [5.591 ms, 5.701 ms]	4.465 ms (378.0%)
iast_GLOBAL	3.606 ms [3.548 ms, 3.664 ms]	2.425 ms (205.3%)
profiling	2.067 ms [2.046 ms, 2.088 ms]	885.627 µs (75.0%)
tracing	1.766 ms [1.751 ms, 1.781 ms]	584.711 µs (49.5%)

Dacapo

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	sarahchen6/refactor-final-field-mutations
git_commit_date	1769453707	1769457558
git_commit_sha	`a34cb64`	`b5ee6b5`
release_version	1.59.0-SNAPSHOT~a34cb643aa	1.54.0-SNAPSHOT~b5ee6b5b66

See matching parameters

	Baseline	Candidate
application	biojava	biojava
ci_job_date	1769459736	1769459736
ci_job_id	1378116403	1378116403
ci_pipeline_id	92909152	92909152
cpu_model	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz
kernel_version	Linux runner-zfyrx7zua-project-304-concurrent-1-rvum51iw 6.8.0-1031-aws #33~22.04.1-Ubuntu SMP Thu Jun 26 14:22:30 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux	Linux runner-zfyrx7zua-project-304-concurrent-1-rvum51iw 6.8.0-1031-aws #33~22.04.1-Ubuntu SMP Thu Jun 26 14:22:30 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux

Summary

Found 1 performance improvements and 0 performance regressions! Performance is the same for 11 metrics, 0 unstable metrics.

scenario	Δ mean execution_time	candidate mean execution_time	baseline mean execution_time
scenario:dacapo:tomcat:appsec	better [-1.411ms; -1.072ms] or [-38.202%; -29.017%]	2.452ms	3.693ms

Execution time for biojava

gantt
    title biojava - execution time [CI 0.99] : candidate=1.54.0-SNAPSHOT~b5ee6b5b66, baseline=1.59.0-SNAPSHOT~a34cb643aa
    dateFormat X
    axisFormat %s
section baseline
no_agent (15.38 s) : 15380000, 15380000
.   : milestone, 15380000,
appsec (14.639 s) : 14639000, 14639000
.   : milestone, 14639000,
iast (17.732 s) : 17732000, 17732000
.   : milestone, 17732000,
iast_GLOBAL (18.113 s) : 18113000, 18113000
.   : milestone, 18113000,
profiling (15.429 s) : 15429000, 15429000
.   : milestone, 15429000,
tracing (14.807 s) : 14807000, 14807000
.   : milestone, 14807000,
section candidate
no_agent (15.552 s) : 15552000, 15552000
.   : milestone, 15552000,
appsec (14.811 s) : 14811000, 14811000
.   : milestone, 14811000,
iast (17.736 s) : 17736000, 17736000
.   : milestone, 17736000,
iast_GLOBAL (17.76 s) : 17760000, 17760000
.   : milestone, 17760000,
profiling (15.273 s) : 15273000, 15273000
.   : milestone, 15273000,
tracing (14.976 s) : 14976000, 14976000
.   : milestone, 14976000,

baseline results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	15.38 s [15.38 s, 15.38 s]	-
appsec	14.639 s [14.639 s, 14.639 s]	-741.0 ms (-4.8%)
iast	17.732 s [17.732 s, 17.732 s]	2.352 s (15.3%)
iast_GLOBAL	18.113 s [18.113 s, 18.113 s]	2.733 s (17.8%)
profiling	15.429 s [15.429 s, 15.429 s]	49.0 ms (0.3%)
tracing	14.807 s [14.807 s, 14.807 s]	-573.0 ms (-3.7%)

candidate results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	15.552 s [15.552 s, 15.552 s]	-
appsec	14.811 s [14.811 s, 14.811 s]	-741.0 ms (-4.8%)
iast	17.736 s [17.736 s, 17.736 s]	2.184 s (14.0%)
iast_GLOBAL	17.76 s [17.76 s, 17.76 s]	2.208 s (14.2%)
profiling	15.273 s [15.273 s, 15.273 s]	-279.0 ms (-1.8%)
tracing	14.976 s [14.976 s, 14.976 s]	-576.0 ms (-3.7%)

Execution time for tomcat

gantt
    title tomcat - execution time [CI 0.99] : candidate=1.54.0-SNAPSHOT~b5ee6b5b66, baseline=1.59.0-SNAPSHOT~a34cb643aa
    dateFormat X
    axisFormat %s
section baseline
no_agent (1.478 ms) : 1466, 1490
.   : milestone, 1478,
appsec (3.693 ms) : 3476, 3909
.   : milestone, 3693,
iast (2.244 ms) : 2175, 2313
.   : milestone, 2244,
iast_GLOBAL (2.287 ms) : 2218, 2356
.   : milestone, 2287,
profiling (2.079 ms) : 2023, 2134
.   : milestone, 2079,
tracing (2.062 ms) : 2007, 2116
.   : milestone, 2062,
section candidate
no_agent (1.468 ms) : 1457, 1480
.   : milestone, 1468,
appsec (2.452 ms) : 2399, 2504
.   : milestone, 2452,
iast (2.199 ms) : 2134, 2264
.   : milestone, 2199,
iast_GLOBAL (2.242 ms) : 2177, 2307
.   : milestone, 2242,
profiling (2.074 ms) : 2020, 2128
.   : milestone, 2074,
tracing (2.031 ms) : 1980, 2083
.   : milestone, 2031,

baseline results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	1.478 ms [1.466 ms, 1.49 ms]	-
appsec	3.693 ms [3.476 ms, 3.909 ms]	2.215 ms (149.8%)
iast	2.244 ms [2.175 ms, 2.313 ms]	766.272 µs (51.8%)
iast_GLOBAL	2.287 ms [2.218 ms, 2.356 ms]	808.875 µs (54.7%)
profiling	2.079 ms [2.023 ms, 2.134 ms]	600.641 µs (40.6%)
tracing	2.062 ms [2.007 ms, 2.116 ms]	583.589 µs (39.5%)

candidate results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	1.468 ms [1.457 ms, 1.48 ms]	-
appsec	2.452 ms [2.399 ms, 2.504 ms]	983.431 µs (67.0%)
iast	2.199 ms [2.134 ms, 2.264 ms]	730.659 µs (49.8%)
iast_GLOBAL	2.242 ms [2.177 ms, 2.307 ms]	773.843 µs (52.7%)
profiling	2.074 ms [2.02 ms, 2.128 ms]	606.104 µs (41.3%)
tracing	2.031 ms [1.98 ms, 2.083 ms]	563.171 µs (38.4%)

sarahchen6 force-pushed the sarahchen6/refactor-final-field-mutations branch from d65bf18 to d88e1b4 Compare January 23, 2026 20:15

sarahchen6 added 2 commits January 26, 2026 14:59

Avoid final field mutation in CapturedSnapshotTest

bc3b06c

Clean up test instance at the end of each test

b5ee6b5

sarahchen6 force-pushed the sarahchen6/refactor-final-field-mutations branch from 46d6ef3 to b5ee6b5 Compare January 26, 2026 20:01

sarahchen6 mentioned this pull request Jan 27, 2026

Prepare for JEP 500 #9557

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Avoid final field mutation in CapturedSnapshotTest #10440

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