Adding Support for `TRACE_PROPAGATION_BEHAVIOR_EXTRACT` #8535

mhlidd · 2025-03-10T20:52:53Z

What Does This Do

Introduces support for a new config TRACE_PROPAGATION_BEHAVIOR_EXTRACT. RFC

Accepted Values:

continue: The tracing library continues the trace from the incoming headers, if present. Also, incoming baggage is propagated. (Default Value)
restart: The tracing library always starts a new trace with a new trace-id. Context extraction will occur as otherwise configured, except that the local span will no longer have a parent-child span relationship with the incoming trace context, instead it will reference the incoming trace context via a span link. Also, incoming baggage is propagated.
ignore: The tracing library always starts a new trace with a new trace-id without creating any span links. Also, incoming baggage is dropped.

Motivation

Additional Notes

Contributor Checklist

Format the title according the contribution guidelines
Assign the type: and (comp: or inst:) labels in addition to any usefull labels
Don't use close, fix or any linking keywords when referencing an issue.
Use solves instead, and assign the PR milestone to the issue
Update the public documentation in case of new configuration flag or behavior

Jira ticket: APMAPI-1010

…EXTRACT

pr-commenter · 2025-03-10T21:04:29Z

Benchmarks

Startup

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	mhlidd/tracecontext_propagation_restart
git_commit_date	1742305462	1742328620
git_commit_sha	`ffa2073`	`534b1ff`
release_version	1.48.0-SNAPSHOT~ffa2073a5c	1.48.0-SNAPSHOT~534b1ffcfb

See matching parameters

	Baseline	Candidate
application	insecure-bank	insecure-bank
ci_job_date	1742331144	1742331144
ci_job_id	853838903	853838903
ci_pipeline_id	59245016	59245016
cpu_model	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz
kernel_version	Linux runner-ybd4envy-project-304-concurrent-0-55oavc10 6.8.0-1024-aws #26~22.04.1-Ubuntu SMP Wed Feb 19 06:54:57 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux	Linux runner-ybd4envy-project-304-concurrent-0-55oavc10 6.8.0-1024-aws #26~22.04.1-Ubuntu SMP Wed Feb 19 06:54:57 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
module	Agent	Agent
parent	None	None
variant	iast	iast

Summary

Found 0 performance improvements and 0 performance regressions! Performance is the same for 57 metrics, 6 unstable metrics.

Startup time reports for insecure-bank

gantt title insecure-bank - global startup overhead: candidate=1.48.0-SNAPSHOT~534b1ffcfb, baseline=1.48.0-SNAPSHOT~ffa2073a5c dateFormat X axisFormat %s section tracing Agent [baseline] (1.049 s) : 0, 1048889 Total [baseline] (8.677 s) : 0, 8677363 Agent [candidate] (1.044 s) : 0, 1044417 Total [candidate] (8.666 s) : 0, 8666246 section iast Agent [baseline] (1.171 s) : 0, 1170685 Total [baseline] (9.238 s) : 0, 9237796 Agent [candidate] (1.177 s) : 0, 1176538 Total [candidate] (9.275 s) : 0, 9275015 section iast_HARDCODED_SECRET_DISABLED Agent [baseline] (1.182 s) : 0, 1181875 Total [baseline] (9.173 s) : 0, 9173281 Agent [candidate] (1.187 s) : 0, 1186743 Total [candidate] (9.213 s) : 0, 9213052 section iast_TELEMETRY_OFF Agent [baseline] (1.175 s) : 0, 1175351 Total [baseline] (9.247 s) : 0, 9247318 Agent [candidate] (1.171 s) : 0, 1171339 Total [candidate] (9.294 s) : 0, 9293763

baseline results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.049 s	-
Agent	iast	1.171 s	121.796 ms (11.6%)
Agent	iast_HARDCODED_SECRET_DISABLED	1.182 s	132.986 ms (12.7%)
Agent	iast_TELEMETRY_OFF	1.175 s	126.462 ms (12.1%)
Total	tracing	8.677 s	-
Total	iast	9.238 s	560.434 ms (6.5%)
Total	iast_HARDCODED_SECRET_DISABLED	9.173 s	495.918 ms (5.7%)
Total	iast_TELEMETRY_OFF	9.247 s	569.955 ms (6.6%)

candidate results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.044 s	-
Agent	iast	1.177 s	132.121 ms (12.7%)
Agent	iast_HARDCODED_SECRET_DISABLED	1.187 s	142.325 ms (13.6%)
Agent	iast_TELEMETRY_OFF	1.171 s	126.922 ms (12.2%)
Total	tracing	8.666 s	-
Total	iast	9.275 s	608.769 ms (7.0%)
Total	iast_HARDCODED_SECRET_DISABLED	9.213 s	546.806 ms (6.3%)
Total	iast_TELEMETRY_OFF	9.294 s	627.517 ms (7.2%)

gantt title insecure-bank - break down per module: candidate=1.48.0-SNAPSHOT~534b1ffcfb, baseline=1.48.0-SNAPSHOT~ffa2073a5c dateFormat X axisFormat %s section tracing BytebuddyAgent [baseline] (723.247 ms) : 0, 723247 BytebuddyAgent [candidate] (721.921 ms) : 0, 721921 GlobalTracer [baseline] (240.989 ms) : 0, 240989 GlobalTracer [candidate] (239.567 ms) : 0, 239567 AppSec [baseline] (54.938 ms) : 0, 54938 AppSec [candidate] (54.742 ms) : 0, 54742 Remote Config [baseline] (693.039 µs) : 0, 693 Remote Config [candidate] (684.42 µs) : 0, 684 Telemetry [baseline] (13.77 ms) : 0, 13770 Telemetry [candidate] (12.237 ms) : 0, 12237 section iast BytebuddyAgent [baseline] (837.408 ms) : 0, 837408 BytebuddyAgent [candidate] (842.859 ms) : 0, 842859 GlobalTracer [baseline] (229.756 ms) : 0, 229756 GlobalTracer [candidate] (230.202 ms) : 0, 230202 AppSec [baseline] (56.348 ms) : 0, 56348 AppSec [candidate] (56.24 ms) : 0, 56240 Remote Config [baseline] (605.82 µs) : 0, 606 Remote Config [candidate] (603.061 µs) : 0, 603 Telemetry [baseline] (8.629 ms) : 0, 8629 Telemetry [candidate] (8.662 ms) : 0, 8662 IAST [baseline] (22.77 ms) : 0, 22770 IAST [candidate] (22.725 ms) : 0, 22725 section iast_HARDCODED_SECRET_DISABLED BytebuddyAgent [baseline] (845.758 ms) : 0, 845758 BytebuddyAgent [candidate] (848.264 ms) : 0, 848264 GlobalTracer [baseline] (231.571 ms) : 0, 231571 GlobalTracer [candidate] (233.225 ms) : 0, 233225 AppSec [baseline] (56.509 ms) : 0, 56509 AppSec [candidate] (56.982 ms) : 0, 56982 Remote Config [baseline] (614.409 µs) : 0, 614 Remote Config [candidate] (621.607 µs) : 0, 622 Telemetry [baseline] (8.837 ms) : 0, 8837 Telemetry [candidate] (8.883 ms) : 0, 8883 IAST [baseline] (23.249 ms) : 0, 23249 IAST [candidate] (23.416 ms) : 0, 23416 section iast_TELEMETRY_OFF BytebuddyAgent [baseline] (840.791 ms) : 0, 840791 BytebuddyAgent [candidate] (836.583 ms) : 0, 836583 GlobalTracer [baseline] (231.479 ms) : 0, 231479 GlobalTracer [candidate] (231.1 ms) : 0, 231100 AppSec [baseline] (55.388 ms) : 0, 55388 AppSec [candidate] (56.691 ms) : 0, 56691 Remote Config [baseline] (596.34 µs) : 0, 596 Remote Config [candidate] (600.795 µs) : 0, 601 Telemetry [baseline] (8.566 ms) : 0, 8566 Telemetry [candidate] (8.68 ms) : 0, 8680 IAST [baseline] (23.235 ms) : 0, 23235 IAST [candidate] (22.431 ms) : 0, 22431

Startup time reports for petclinic

gantt title petclinic - global startup overhead: candidate=1.48.0-SNAPSHOT~534b1ffcfb, baseline=1.48.0-SNAPSHOT~ffa2073a5c dateFormat X axisFormat %s section tracing Agent [baseline] (1.047 s) : 0, 1046822 Total [baseline] (10.524 s) : 0, 10523514 Agent [candidate] (1.044 s) : 0, 1043508 Total [candidate] (10.434 s) : 0, 10434263 section appsec Agent [baseline] (1.186 s) : 0, 1185852 Total [baseline] (10.753 s) : 0, 10753017 Agent [candidate] (1.183 s) : 0, 1183312 Total [candidate] (10.77 s) : 0, 10769935 section iast Agent [baseline] (1.172 s) : 0, 1171760 Total [baseline] (10.976 s) : 0, 10975615 Agent [candidate] (1.18 s) : 0, 1179596 Total [candidate] (11.036 s) : 0, 11035622 section profiling Agent [baseline] (1.26 s) : 0, 1260285 Total [baseline] (10.864 s) : 0, 10863608 Agent [candidate] (1.267 s) : 0, 1267457 Total [candidate] (10.844 s) : 0, 10844387

baseline results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.047 s	-
Agent	appsec	1.186 s	139.03 ms (13.3%)
Agent	iast	1.172 s	124.938 ms (11.9%)
Agent	profiling	1.26 s	213.463 ms (20.4%)
Total	tracing	10.524 s	-
Total	appsec	10.753 s	229.503 ms (2.2%)
Total	iast	10.976 s	452.101 ms (4.3%)
Total	profiling	10.864 s	340.095 ms (3.2%)

candidate results

Module	Variant	Duration	Δ tracing
Agent	tracing	1.044 s	-
Agent	appsec	1.183 s	139.803 ms (13.4%)
Agent	iast	1.18 s	136.088 ms (13.0%)
Agent	profiling	1.267 s	223.948 ms (21.5%)
Total	tracing	10.434 s	-
Total	appsec	10.77 s	335.672 ms (3.2%)
Total	iast	11.036 s	601.359 ms (5.8%)
Total	profiling	10.844 s	410.123 ms (3.9%)

gantt title petclinic - break down per module: candidate=1.48.0-SNAPSHOT~534b1ffcfb, baseline=1.48.0-SNAPSHOT~ffa2073a5c dateFormat X axisFormat %s section tracing BytebuddyAgent [baseline] (722.443 ms) : 0, 722443 BytebuddyAgent [candidate] (718.508 ms) : 0, 718508 GlobalTracer [baseline] (240.505 ms) : 0, 240505 GlobalTracer [candidate] (239.431 ms) : 0, 239431 AppSec [baseline] (54.906 ms) : 0, 54906 AppSec [candidate] (54.646 ms) : 0, 54646 Remote Config [baseline] (692.308 µs) : 0, 692 Remote Config [candidate] (687.2 µs) : 0, 687 Telemetry [baseline] (12.959 ms) : 0, 12959 Telemetry [candidate] (15.076 ms) : 0, 15076 section appsec BytebuddyAgent [baseline] (738.024 ms) : 0, 738024 BytebuddyAgent [candidate] (735.882 ms) : 0, 735882 GlobalTracer [baseline] (237.275 ms) : 0, 237275 GlobalTracer [candidate] (236.169 ms) : 0, 236169 AppSec [baseline] (175.566 ms) : 0, 175566 AppSec [candidate] (176.353 ms) : 0, 176353 Remote Config [baseline] (662.662 µs) : 0, 663 Remote Config [candidate] (662.556 µs) : 0, 663 Telemetry [baseline] (8.315 ms) : 0, 8315 Telemetry [candidate] (8.294 ms) : 0, 8294 IAST [baseline] (21.656 ms) : 0, 21656 IAST [candidate] (21.495 ms) : 0, 21495 section iast BytebuddyAgent [baseline] (838.34 ms) : 0, 838340 BytebuddyAgent [candidate] (843.645 ms) : 0, 843645 GlobalTracer [baseline] (230.122 ms) : 0, 230122 GlobalTracer [candidate] (231.257 ms) : 0, 231257 AppSec [baseline] (55.979 ms) : 0, 55979 AppSec [candidate] (56.025 ms) : 0, 56025 Remote Config [baseline] (606.331 µs) : 0, 606 Remote Config [candidate] (618.955 µs) : 0, 619 Telemetry [baseline] (8.668 ms) : 0, 8668 Telemetry [candidate] (8.885 ms) : 0, 8885 IAST [baseline] (22.887 ms) : 0, 22887 IAST [candidate] (23.914 ms) : 0, 23914 section profiling BytebuddyAgent [baseline] (709.43 ms) : 0, 709430 BytebuddyAgent [candidate] (714.053 ms) : 0, 714053 GlobalTracer [baseline] (350.23 ms) : 0, 350230 GlobalTracer [candidate] (351.943 ms) : 0, 351943 AppSec [baseline] (54.22 ms) : 0, 54220 AppSec [candidate] (53.771 ms) : 0, 53771 Remote Config [baseline] (675.358 µs) : 0, 675 Remote Config [candidate] (726.714 µs) : 0, 727 Telemetry [baseline] (8.958 ms) : 0, 8958 Telemetry [candidate] (8.966 ms) : 0, 8966 ProfilingAgent [baseline] (96.043 ms) : 0, 96043 ProfilingAgent [candidate] (96.926 ms) : 0, 96926 Profiling [baseline] (96.067 ms) : 0, 96067 Profiling [candidate] (96.95 ms) : 0, 96950

Load

Dacapo

Parameters

	Baseline	Candidate
baseline_or_candidate	baseline	candidate
git_branch	master	mhlidd/tracecontext_propagation_restart
git_commit_date	1742305462	1742328620
git_commit_sha	`ffa2073`	`534b1ff`
release_version	1.48.0-SNAPSHOT~ffa2073a5c	1.48.0-SNAPSHOT~534b1ffcfb

See matching parameters

	Baseline	Candidate
application	biojava	biojava
ci_job_date	1742330699	1742330699
ci_job_id	853838905	853838905
ci_pipeline_id	59245016	59245016
cpu_model	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz	Intel(R) Xeon(R) Platinum 8259CL CPU @ 2.50GHz
kernel_version	Linux runner-psmztocj-project-304-concurrent-3-dxvpohve 6.8.0-1024-aws #26~22.04.1-Ubuntu SMP Wed Feb 19 06:54:57 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux	Linux runner-psmztocj-project-304-concurrent-3-dxvpohve 6.8.0-1024-aws #26~22.04.1-Ubuntu SMP Wed Feb 19 06:54:57 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
variant	appsec	appsec

Summary

Found 0 performance improvements and 0 performance regressions! Performance is the same for 12 metrics, 0 unstable metrics.

Execution time for tomcat

gantt title tomcat - execution time [CI 0.99] : candidate=1.48.0-SNAPSHOT~534b1ffcfb, baseline=1.48.0-SNAPSHOT~ffa2073a5c dateFormat X axisFormat %s section baseline no_agent (1.472 ms) : 1461, 1484 . : milestone, 1472, appsec (2.34 ms) : 2296, 2384 . : milestone, 2340, iast (2.124 ms) : 2068, 2179 . : milestone, 2124, iast_GLOBAL (2.172 ms) : 2116, 2229 . : milestone, 2172, profiling (2.001 ms) : 1956, 2046 . : milestone, 2001, tracing (1.948 ms) : 1906, 1991 . : milestone, 1948, section candidate no_agent (1.476 ms) : 1464, 1487 . : milestone, 1476, appsec (2.343 ms) : 2299, 2387 . : milestone, 2343, iast (2.135 ms) : 2079, 2192 . : milestone, 2135, iast_GLOBAL (2.161 ms) : 2105, 2218 . : milestone, 2161, profiling (1.973 ms) : 1929, 2018 . : milestone, 1973, tracing (1.958 ms) : 1916, 2001 . : milestone, 1958,

baseline results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	1.472 ms [1.461 ms, 1.484 ms]	-
appsec	2.34 ms [2.296 ms, 2.384 ms]	867.412 µs (58.9%)
iast	2.124 ms [2.068 ms, 2.179 ms]	651.194 µs (44.2%)
iast_GLOBAL	2.172 ms [2.116 ms, 2.229 ms]	699.721 µs (47.5%)
profiling	2.001 ms [1.956 ms, 2.046 ms]	528.407 µs (35.9%)
tracing	1.948 ms [1.906 ms, 1.991 ms]	475.855 µs (32.3%)

candidate results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	1.476 ms [1.464 ms, 1.487 ms]	-
appsec	2.343 ms [2.299 ms, 2.387 ms]	866.915 µs (58.7%)
iast	2.135 ms [2.079 ms, 2.192 ms]	659.288 µs (44.7%)
iast_GLOBAL	2.161 ms [2.105 ms, 2.218 ms]	685.563 µs (46.5%)
profiling	1.973 ms [1.929 ms, 2.018 ms]	497.278 µs (33.7%)
tracing	1.958 ms [1.916 ms, 2.001 ms]	482.635 µs (32.7%)

Execution time for biojava

gantt title biojava - execution time [CI 0.99] : candidate=1.48.0-SNAPSHOT~534b1ffcfb, baseline=1.48.0-SNAPSHOT~ffa2073a5c dateFormat X axisFormat %s section baseline no_agent (15.496 s) : 15496000, 15496000 . : milestone, 15496000, appsec (14.829 s) : 14829000, 14829000 . : milestone, 14829000, iast (18.44 s) : 18440000, 18440000 . : milestone, 18440000, iast_GLOBAL (17.755 s) : 17755000, 17755000 . : milestone, 17755000, profiling (15.61 s) : 15610000, 15610000 . : milestone, 15610000, tracing (14.951 s) : 14951000, 14951000 . : milestone, 14951000, section candidate no_agent (15.256 s) : 15256000, 15256000 . : milestone, 15256000, appsec (14.86 s) : 14860000, 14860000 . : milestone, 14860000, iast (18.783 s) : 18783000, 18783000 . : milestone, 18783000, iast_GLOBAL (18.237 s) : 18237000, 18237000 . : milestone, 18237000, profiling (14.975 s) : 14975000, 14975000 . : milestone, 14975000, tracing (14.943 s) : 14943000, 14943000 . : milestone, 14943000,

baseline results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	15.496 s [15.496 s, 15.496 s]	-
appsec	14.829 s [14.829 s, 14.829 s]	-667.0 ms (-4.3%)
iast	18.44 s [18.44 s, 18.44 s]	2.944 s (19.0%)
iast_GLOBAL	17.755 s [17.755 s, 17.755 s]	2.259 s (14.6%)
profiling	15.61 s [15.61 s, 15.61 s]	114.0 ms (0.7%)
tracing	14.951 s [14.951 s, 14.951 s]	-545.0 ms (-3.5%)

candidate results

Variant	Execution Time [CI 0.99]	Δ no_agent
no_agent	15.256 s [15.256 s, 15.256 s]	-
appsec	14.86 s [14.86 s, 14.86 s]	-396.0 ms (-2.6%)
iast	18.783 s [18.783 s, 18.783 s]	3.527 s (23.1%)
iast_GLOBAL	18.237 s [18.237 s, 18.237 s]	2.981 s (19.5%)
profiling	14.975 s [14.975 s, 14.975 s]	-281.0 ms (-1.8%)
tracing	14.943 s [14.943 s, 14.943 s]	-313.0 ms (-2.1%)

PerfectSlayer

Left few comments as part of early review 🙏

dd-trace-core/src/main/java/datadog/trace/core/CoreTracer.java

dd-trace-core/src/main/java/datadog/trace/core/propagation/HttpCodec.java

internal-api/src/main/java/datadog/trace/api/Config.java

dd-trace-core/src/main/java/datadog/trace/core/propagation/HttpCodec.java

PerfectSlayer

Looking good! Left a bunch of comments for polish but everything's here 👍

PerfectSlayer · 2025-03-17T05:36:23Z

dd-trace-api/src/main/java/datadog/trace/api/TracePropagationBehaviorExtract.java

+ RESTART,
+ IGNORE;
+
+ private String displayName;


For the record, enum can have constructor too.

So you should be able to set the displayName final and compute it in constructor.

TBH I'm not sure what the benefit of having a constructor here... where would it actually be used? I added one constructor in the new commit, but not sure if it is what you were imagining.

The main difference between the lazy and the constructor will be the initialization time.
For the lazy, it will be done when accessing the string representation (so when parsing config).
For the constructor one, it will be done when loading the type.
For lazy initialization, you might need to care about async access and prevent double initialization on concurrent access.
All of those is advice for general programming. In this case, it does not matter much as Config will appear near startup, and the initialized resources are not significant.

What I had in mind about the constructor was:

TracePropagationBehaviorExtract() { this.displayName = name().toLowerCase(ROOT); }

The same initialization than yours on toString() but moved already to simplify the logic.
Its mostly for the sake of Java discussion, there is no real impact for you PR 😉

dd-trace-core/src/main/java/datadog/trace/core/propagation/HttpCodec.java

dd-trace-core/src/main/java/datadog/trace/core/CoreTracer.java

dd-trace-core/src/test/groovy/datadog/trace/core/propagation/HttpExtractorTest.groovy

dd-trace-core/src/test/groovy/datadog/trace/core/CoreSpanBuilderTest.groovy

internal-api/src/main/java/datadog/trace/api/Config.java

internal-api/src/main/java/datadog/trace/bootstrap/instrumentation/api/AgentSpanContext.java

...nal-api/src/main/java/datadog/trace/bootstrap/instrumentation/api/NotSampledSpanContext.java

internal-api/src/main/java/datadog/trace/bootstrap/instrumentation/api/TagContext.java

PerfectSlayer

Looking good! 🎉

PerfectSlayer · 2025-03-18T05:57:34Z

dd-trace-api/src/main/java/datadog/trace/api/TracePropagationBehaviorExtract.java

+ RESTART,
+ IGNORE;
+
+ private String displayName;


The main difference between the lazy and the constructor will be the initialization time.
For the lazy, it will be done when accessing the string representation (so when parsing config).
For the constructor one, it will be done when loading the type.
For lazy initialization, you might need to care about async access and prevent double initialization on concurrent access.
All of those is advice for general programming. In this case, it does not matter much as Config will appear near startup, and the initialized resources are not significant.

What I had in mind about the constructor was:

TracePropagationBehaviorExtract() { this.displayName = name().toLowerCase(ROOT); }

The same initialization than yours on toString() but moved already to simplify the logic.
Its mostly for the sake of Java discussion, there is no real impact for you PR 😉

amarziali · 2025-03-18T08:03:35Z

dd-trace-api/src/main/java/datadog/trace/api/TracePropagationBehaviorExtract.java

+ @Override
+ public String toString() {
+ String string = displayName;
+ if (displayName == null) {


This can just be simplified like this:

if (displayName == null) { displayName = name().toLowerCase(Locale.ROOT); } return displayName;

I even proposed an early initialization in constructor :)

Does implementing the initialization in the constructor take care of all cases where toString() might be called? 🤔

| Package | Type | Package file | Manager | Update | Change | |---|---|---|---|---|---| | org.flywaydb.flyway | plugin | misk/gradle/libs.versions.toml | gradle | minor | `11.6.0` -> `11.7.0` | | [com.squareup.okio:okio-fakefilesystem](https://github.com/square/okio) | dependencies | misk/gradle/libs.versions.toml | gradle | minor | `3.10.2` -> `3.11.0` | | [com.squareup.okio:okio](https://github.com/square/okio) | dependencies | misk/gradle/libs.versions.toml | gradle | minor | `3.10.2` -> `3.11.0` | | [com.autonomousapps.dependency-analysis](https://github.com/autonomousapps/dependency-analysis-android-gradle-plugin) | plugin | misk/gradle/libs.versions.toml | gradle | minor | `2.15.0` -> `2.16.0` | | [com.datadoghq:dd-trace-api](https://github.com/datadog/dd-trace-java) | dependencies | misk/gradle/libs.versions.toml | gradle | minor | `1.47.3` -> `1.48.1` | | [com.datadoghq:dd-trace-ot](https://github.com/datadog/dd-trace-java) | dependencies | misk/gradle/libs.versions.toml | gradle | minor | `1.47.3` -> `1.48.1` | | [software.amazon.awssdk:sdk-core](https://aws.amazon.com/sdkforjava) | dependencies | misk/gradle/libs.versions.toml | gradle | patch | `2.31.18` -> `2.31.20` | | [software.amazon.awssdk:sqs](https://aws.amazon.com/sdkforjava) | dependencies | misk/gradle/libs.versions.toml | gradle | patch | `2.31.18` -> `2.31.20` | | [software.amazon.awssdk:dynamodb-enhanced](https://aws.amazon.com/sdkforjava) | dependencies | misk/gradle/libs.versions.toml | gradle | patch | `2.31.18` -> `2.31.20` | | [software.amazon.awssdk:dynamodb](https://aws.amazon.com/sdkforjava) | dependencies | misk/gradle/libs.versions.toml | gradle | patch | `2.31.18` -> `2.31.20` | | [software.amazon.awssdk:aws-core](https://aws.amazon.com/sdkforjava) | dependencies | misk/gradle/libs.versions.toml | gradle | patch | `2.31.18` -> `2.31.20` | | [software.amazon.awssdk:bom](https://aws.amazon.com/sdkforjava) | dependencies | misk/gradle/libs.versions.toml | gradle | patch | `2.31.18` -> `2.31.20` | | [software.amazon.awssdk:auth](https://aws.amazon.com/sdkforjava) | dependencies | misk/gradle/libs.versions.toml | gradle | patch | `2.31.18` -> `2.31.20` | --- ### Release Notes <details> <summary>square/okio (com.squareup.okio:okio-fakefilesystem)</summary> ### [`v3.11.0`](https://github.com/square/okio/blob/HEAD/CHANGELOG.md#Version-3110) *2025-04-09* - Fix: Clear the deflater's byte array reference - New: Faster implementation of `String.decodeHex()` on Kotlin/JS. - New: Declare `EXACTLY_ONCE` execution for blocks like `Closeable.use {}` and `FileSystem.read {}`. - Upgrade: \[Kotlin 2.1.20]\[kotlin\_2\_1\_20]. </details> <details> <summary>autonomousapps/dependency-analysis-android-gradle-plugin (com.autonomousapps.dependency-analysis)</summary> ### [`v2.16.0`](https://github.com/autonomousapps/dependency-analysis-android-gradle-plugin/blob/HEAD/CHANGELOG.md#Version-2160) - \[Feat]: support `com.android.test` projects. - \[Feat]: support typesafe project accessors with opt-in. ```kotlin dependencyAnalysis { useTypesafeProjectAccessors(true) // false by default } ``` </details> <details> <summary>datadog/dd-trace-java (com.datadoghq:dd-trace-api)</summary> ### [`v1.48.1`](https://github.com/DataDog/dd-trace-java/releases/tag/v1.48.1): 1.48.1 ### Components #### Tracer internal logging - 🐛 Remove print line causing unnecessary logs ([#8687](DataDog/dd-trace-java#8687) - 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[@wmouchere](https://github.com/wmouchere)) #### Testing - 🧹 Simplify ssi tests one-pipeline ([#8558](DataDog/dd-trace-java#8558) - [@robertomonteromiguel](https://github.com/robertomonteromiguel)) - ✨ Add smoke tests for java's concurrent API ([#8438](DataDog/dd-trace-java#8438) - [@sarahchen6](https://github.com/sarahchen6)) #### Trace context propagation - ✨ Adding Support for `TRACE_PROPAGATION_BEHAVIOR_EXTRACT` ([#8535](DataDog/dd-trace-java#8535) - [@mhlidd](https://github.com/mhlidd)) #### Tracer core - 🐛 Ensure shaded helpers have unique names ([#8559](DataDog/dd-trace-java#8559) - [@amarziali](https://github.com/amarziali)) - ✨ Support common config sources for user-provided git info ([#8547](DataDog/dd-trace-java#8547) - [@nikita-tkachenko-datadog](https://github.com/nikita-tkachenko-datadog)) - ✨ Make the default config sources more robust when a security manager is installed ([#8544](DataDog/dd-trace-java#8544) - [@mcculls](https://github.com/mcculls)) - ✨ Support targeting services with configurations in stable configuration file ([#8526](DataDog/dd-trace-java#8526) - 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mhlidd added 3 commits March 7, 2025 18:00

initial implementation of TRACE_PROPAGATION_BEHAVIOR_EXTRACT

518aae0

initial implementation and unit tests for TRACE_PROPAGATION_BEHAVIOR_…

8ff205b

…EXTRACT

change to sampling

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mhlidd added type: enhancement Enhancements and improvements comp: context propagation Trace context propagation labels Mar 10, 2025

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dd-trace-core/src/main/java/datadog/trace/core/propagation/HttpCodec.java Show resolved Hide resolved

mhlidd added 11 commits March 12, 2025 10:46

comments for future work

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adding isremote() to all AgentSpanContexts

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updating span link logic for restart

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updating enum

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cleanup

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Merge branch 'master' into mhlidd/tracecontext_propagation_restart

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adding override to new class

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updating enum and tests

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refactoring capturing config

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forcing enum to be built by build time

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adding enum to skip test coverae

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mhlidd marked this pull request as ready for review March 14, 2025 19:57

mhlidd requested review from a team as code owners March 14, 2025 19:57

mhlidd requested review from PerfectSlayer and amarziali March 14, 2025 19:57

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mhlidd added 2 commits March 17, 2025 15:13

responding to PR comments

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mhlidd added 2 commits March 18, 2025 14:46

modifying enum constructor

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Merge branch 'master' into mhlidd/tracecontext_propagation_restart

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mhlidd merged commit c67bed5 into master Mar 19, 2025
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mhlidd deleted the mhlidd/tracecontext_propagation_restart branch March 19, 2025 14:48

github-actions bot added this to the 1.48.0 milestone Mar 19, 2025

mhlidd mentioned this pull request Mar 31, 2025

[Java] Re-enabling tests from #4355 DataDog/system-tests#4440

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Adding Support for `TRACE_PROPAGATION_BEHAVIOR_EXTRACT` #8535

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Adding Support for `TRACE_PROPAGATION_BEHAVIOR_EXTRACT` #8535

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