fix(ci): Revert job removal from CircleCI (#8429)

Author: PerfectSlayer

.circleci/config.continue.yml.j2

@@ -365,6 +365,21 @@ jobs:
 
       - display_memory_usage
 
+  spotless:
+    <<: *defaults
+    resource_class: medium+
+
+    steps:
+      - setup_code
+
+      - run:
+          name: Run spotless
+          command: >-
+            JAVA_HOME=$JAVA_11_HOME
+            ./gradlew spotlessCheck
+            << pipeline.parameters.gradle_flags >>
+            --max-workers=8
+
   check:
     <<: *defaults
 
@@ -690,6 +705,117 @@ jobs:
           - DD_BIND_HOST=0.0.0.0
           - DD_API_KEY=invalid_key_but_this_is_fine
 
+  test_published_artifacts:
+    <<: *defaults
+    resource_class: medium
+    docker:
+      - image: << pipeline.parameters.docker_image >>:{{ docker_image_prefix }}7
+
+    steps:
+      - setup_code
+      - restore_dependency_cache:
+          cacheType: lib
+      - restore_build_cache:
+          cacheType: lib
+
+      - run:
+          name: Publish Artifacts Locally
+          command: |
+            mvn_local_repo=$(./mvnw help:evaluate -Dexpression=settings.localRepository -q -DforceStdout)
+            rm -rf "${mvn_local_repo}/com/datadoghq"
+            export GRADLE_OPTS="-Dorg.gradle.jvmargs='-Xmx2G -Xms2G -XX:ErrorFile=/tmp/hs_err_pid%p.log -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/tmp'"
+            ./gradlew publishToMavenLocal << pipeline.parameters.gradle_flags >> --max-workers=3
+
+      - run:
+          name: Test Published Artifacts
+          command: |
+            cd test-published-dependencies
+            export GRADLE_OPTS="-Dorg.gradle.jvmargs='-Xmx512M -Xms512M -XX:ErrorFile=/tmp/hs_err_pid%p.log -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/tmp'"
+            ./gradlew check --info --max-workers=3
+
+      - run:
+          name: Collect Reports
+          when: on_fail
+          command: .circleci/collect_reports.sh
+
+      - store_artifacts:
+          path: ./reports
+
+      - display_memory_usage
+  muzzle-dep-report:
+    <<: *defaults
+    resource_class: medium
+    steps:
+      - setup_code
+      - skip_unless_matching_files_changed:
+          pattern: "dd-java-agent/instrumentation"
+      - restore_dependency_cache:
+          cacheType: inst
+      - restore_build_cache:
+          cacheType: inst
+      - run:
+          name: Generate muzzle dep report
+          command: >-
+            SKIP_BUILDSCAN="true"
+            GRADLE_OPTS="-Dorg.gradle.jvmargs='-Xmx2G -Xms2G -XX:ErrorFile=/tmp/hs_err_pid%p.log -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/tmp'"
+            ./gradlew generateMuzzleReport muzzleInstrumentationReport
+      - run:
+          name: Collect Reports
+          command: .circleci/collect_muzzle_deps.sh
+      - store_artifacts:
+          path: ./reports
+
+  muzzle:
+    <<: *defaults
+    resource_class: medium+
+    parallelism: 4
+    steps:
+      - setup_code
+
+      - skip_unless_matching_files_changed:
+          pattern: "dd-java-agent/instrumentation"
+
+      # We are not running with a separate cache of all muzzle artifacts here because it gets very big and
+      # ends up taking more time restoring/saving than the actual increase in time it takes just
+      # downloading the artifacts each time.
+      #
+      # Let's at least restore the build cache to have something to start from.
+      - restore_dependency_cache:
+          cacheType: inst
+      - restore_build_cache:
+          cacheType: inst
+
+      - run:
+          name: Gather muzzle tasks
+          command: >-
+            SKIP_BUILDSCAN="true"
+            GRADLE_OPTS="-Dorg.gradle.jvmargs='-Xmx2G -Xms2G -XX:ErrorFile=/tmp/hs_err_pid%p.log -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/tmp'"
+            ./gradlew writeMuzzleTasksToFile
+            << pipeline.parameters.gradle_flags >>
+            --max-workers=3
+
+      - run:
+          name: Verify Muzzle
+          command: >-
+            SKIP_BUILDSCAN="true"
+            GRADLE_OPTS="-Dorg.gradle.jvmargs='-Xmx3G -Xms2G -XX:ErrorFile=/tmp/hs_err_pid%p.log -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/tmp'"
+            ./gradlew `circleci tests split --split-by=timings workspace/build/muzzleTasks | xargs`
+            << pipeline.parameters.gradle_flags >>
+            --max-workers=4
+
+      - run:
+          name: Collect Reports
+          when: on_fail
+          command: .circleci/collect_reports.sh
+
+      - store_artifacts:
+          path: ./reports
+
+      - store_test_results:
+          path: workspace/build/muzzle-test-results
+
+      - display_memory_usage
+
   system-tests:
     machine:
       image: ubuntu-2404:current
@@ -943,6 +1069,7 @@ build_test_jobs: &build_test_jobs
       name: build_profiling
       gradleTarget: :profilingTest
       cacheType: profiling
+  - spotless
 
   - fan_in:
       requires:
@@ -951,6 +1078,7 @@ build_test_jobs: &build_test_jobs
         - build_inst
         - build_smoke
         - build_profiling
+        - spotless
       name: ok_to_test
       stage: ok_to_test
 
@@ -1299,6 +1427,24 @@ build_test_jobs: &build_test_jobs
       cacheType: base
       testJvm: "8"
 
+  - test_published_artifacts:
+      requires:
+        - ok_to_test
+
+  - muzzle:
+      requires:
+        - ok_to_test
+      filters:
+        branches:
+          ignore:
+            - master
+            - project/*
+            - release/*
+
+  - muzzle-dep-report:
+      requires:
+        - ok_to_test
+
   - system-tests:
       requires:
         - ok_to_test
@@ -1319,6 +1465,7 @@ build_test_jobs: &build_test_jobs
 
   - fan_in:
       requires:
+        - test_published_artifacts
 {% for jdk in all_jdks %}
         - "test_{{ jdk }}_profiling"
 {% endfor %}
@@ -1327,6 +1474,7 @@ build_test_jobs: &build_test_jobs
 
   - fan_in:
       requires:
+        - test_published_artifacts
 {% for jdk in all_jdks %}
         - "test_{{ jdk }}_debugger"
 {% endfor %}
@@ -1338,11 +1486,13 @@ build_test_jobs: &build_test_jobs
   - fan_in:
       requires:
         - check
+        - test_published_artifacts
         - agent_integration_tests
 {% for jdk in all_jdks %}
         - "test_{{ jdk }}"
 {% endfor %}
         - test_inst_latest
+        - muzzle
         - profiling
         - debugger
         - system-tests