Add Java support for AWS Lambdas by claponcet · Pull Request #6278 · DataDog/system-tests

claponcet · 2026-02-11T15:44:04Z

Motivation

We are adding AppSec support for AWS Lambdas in Java and need system-tests to validate it.

Changes

A new library was created: java_lambda as it as been done for python_lambda, with 5 weblogs for each lambda trigger-type, and a new manifest.

Workflow

⚠️ Create your PR as draft ⚠️
Work on you PR until the CI passes
Mark it as ready for review
- Test logic is modified? -> Get a review from RFC owner.
- Framework is modified, or non obvious usage of it -> get a review from R&P team

🚀 Once your PR is reviewed and the CI green, you can merge it!

🛟 #apm-shared-testing 🛟

Reviewer checklist

Anything but tests/ or manifests/ is modified ? I have the approval from R&P team
A docker base image is modified?
- the relevant build-XXX-image label is present
A scenario is added, removed or renamed?
- Get a review from R&P team

github-actions · 2026-02-11T15:50:02Z

CODEOWNERS have been resolved as:

manifests/java_lambda.yml                                               @DataDog/system-tests-core
utils/build/docker/java_lambda/app.sh                                   @DataDog/apm-java @DataDog/asm-java @DataDog/system-tests-core
utils/build/docker/java_lambda/java-alb-multi.Dockerfile                @DataDog/apm-java @DataDog/asm-java @DataDog/system-tests-core
utils/build/docker/java_lambda/java-alb.Dockerfile                      @DataDog/apm-java @DataDog/asm-java @DataDog/system-tests-core
utils/build/docker/java_lambda/java-apigw-http.Dockerfile               @DataDog/apm-java @DataDog/asm-java @DataDog/system-tests-core
utils/build/docker/java_lambda/java-apigw-rest.Dockerfile               @DataDog/apm-java @DataDog/asm-java @DataDog/system-tests-core
utils/build/docker/java_lambda/java-function-url.Dockerfile             @DataDog/apm-java @DataDog/asm-java @DataDog/system-tests-core
utils/build/docker/java_lambda/pom.xml                                  @DataDog/apm-java @DataDog/asm-java @DataDog/system-tests-core
utils/build/docker/java_lambda/src/main/java/com/datadoghq/lambda/Handler.java  @DataDog/apm-java @DataDog/asm-java @DataDog/system-tests-core
conftest.py                                                             @DataDog/system-tests-core
docs/edit/manifest.md                                                   @DataDog/system-tests-core
tests/test_the_test/test_compute_libraries_and_scenarios.py             @DataDog/system-tests-core
utils/_context/component_version.py                                     @DataDog/system-tests-core
utils/_decorators.py                                                    @DataDog/system-tests-core
utils/build/build.sh                                                    @DataDog/system-tests-core
utils/manifest/_internal/parser.py                                      @DataDog/system-tests-core
utils/scripts/activate_easy_wins/_internal/const.py                     @DataDog/system-tests-core
utils/scripts/ci_orchestrators/workflow_data.py                         @DataDog/system-tests-core
utils/scripts/compute-workflow-parameters.py                            @DataDog/system-tests-core
utils/scripts/compute_libraries_and_scenarios.py                        @DataDog/system-tests-core
utils/scripts/get-image-list.py                                         @DataDog/system-tests-core
utils/scripts/libraries_and_scenarios_rules.yml                         @DataDog/system-tests-core
utils/scripts/load-binary.sh                                            @DataDog/system-tests-core

datadog-datadog-prod-us1 · 2026-02-11T16:01:34Z

✅ Tests

🎉 All green!

❄️ No new flaky tests detected
🧪 All tests passed

_{This comment will be updated automatically if new data arrives.

🔗 Commit SHA: 75ab8d8 | Docs | Datadog PR Page | Was this helpful? React with 👍/👎 or give us feedback!}

cbeauchesne

Could you do a search for the term python_lambda everywhere in the code, and if needed, add java_lambda? If you have any doubt, ping me, we'll go threw this list together.

cbeauchesne · 2026-02-18T17:59:48Z

 readonly DEFAULT_cpp_httpd=httpd
 readonly DEFAULT_cpp_nginx=nginx
 readonly DEFAULT_python_lambda=apigw-rest
+readonly DEFAULT_java_lambda=apigw-rest


Weblog names must be unique, can you pick another one?

cbeauchesne · 2026-02-23T09:14:58Z

You can run ./format.sh locally to fix lint issue.
For test_the_test, ping me if you need some help.

cbeauchesne

You'll need to adapt ./utils/script/load_binary.sh to support java_lambda.

Since the underlying details may be not that obvious, we can meet to discuss what will happen with all of that. You can DM me to see that.

cbeauchesne

The failure is not related, I'm fixing it.

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chatgpt-codex-connector · 2026-03-04T12:26:51Z

+                event.getQueryStringParameters(),
+                event.getHeaders(),


Read multi-value ALB request fields

Handle the ALB multi-value trigger by consuming multiValueQueryStringParameters and multiValueHeaders when present. In the checked lambda-proxy path (utils/build/docker/lambda_proxy/alb.py), build_alb_event(..., multi=True) only sets those multi-value fields, so using event.getQueryStringParameters() and event.getHeaders() here drops query/header data for java-alb-multi requests; that can break parameter-driven endpoints and prevent the user-agent tag enrichment used for request/span matching.

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chatgpt-codex-connector · 2026-03-04T12:26:51Z

+            APIGatewayProxyResponseEvent response = new APIGatewayProxyResponseEvent();
+            response.setStatusCode(statusCode);
+            response.setBody(body);
+            response.setHeaders(headers != null ? headers : new HashMap<>());


Populate multiValueHeaders for ALB multi responses

Return multiValueHeaders for REST/ALB responses in the multi-value ALB flow. I checked utils/build/docker/lambda_proxy/alb.py, and parse_alb_lambda_output(..., multi=True) reads resp["multiValueHeaders"] (not headers), but this branch only sets headers; for java-alb-multi, response headers are therefore lost (and can fail if the serializer omits multiValueHeaders entirely), impacting header/cookie-sensitive behavior.

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cbeauchesne requested changes Feb 18, 2026

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claponcet force-pushed the clara.poncet/java-lambdas-appsec branch from 834b011 to 15a6f81 Compare February 25, 2026 14:50

cbeauchesne requested changes Feb 26, 2026

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claponcet added 6 commits March 3, 2026 10:44

add new java_lambda library, weblogs and manifest

8e8859e

rename weblogs and add missing java_lambda references

ed3e8cf

linting and fixing broken test

a464e5c

linting

d39f2f7

add java_lambda to binary loading and version parsing

fb8e20b

mark everything as missing feature for java_lambda

d89cb50

claponcet force-pushed the clara.poncet/java-lambdas-appsec branch from 3e41651 to d89cb50 Compare March 3, 2026 09:45

claponcet added 2 commits March 3, 2026 11:05

mark python specific test as irrelevant

f9a2f45

Merge branch 'main' into clara.poncet/java-lambdas-appsec

50ec272

cbeauchesne approved these changes Mar 3, 2026

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Merge branch 'main' into clara.poncet/java-lambdas-appsec

75ab8d8

claponcet marked this pull request as ready for review March 4, 2026 12:19

claponcet requested review from a team as code owners March 4, 2026 12:19

claponcet requested review from jandro996 and manuel-alvarez-alvarez March 4, 2026 12:19

claponcet merged commit de4f3ca into main Mar 4, 2026
3371 of 3375 checks passed

claponcet deleted the clara.poncet/java-lambdas-appsec branch March 4, 2026 12:23

jandro996 approved these changes Mar 4, 2026

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chatgpt-codex-connector Bot reviewed Mar 4, 2026

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Add Java support for AWS Lambdas#6278

Add Java support for AWS Lambdas#6278
claponcet merged 9 commits into
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claponcet commented Feb 11, 2026

Motivation

Changes

Workflow

Reviewer checklist

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