Create new SubProject to not depend on Dataflow in Kafka

.github/workflows/beam_PreCommit_Java_Kafka_IO_Dataflow.yml

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+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: PreCommit Java Kafka IO Dataflow
+
+on:
+  push:
+    tags: ['v*']
+    branches: ['master', 'release-*']
+    paths:
+      - "sdks/java/io/kafka/**"
+      - "sdks/java/testing/test-utils/**"
+      - "sdks/java/expansion-service/**"
+      - "sdks/java/io/synthetic/**"
+      - "sdks/java/io/expansion-service/**"
+      - ".github/workflows/beam_PreCommit_Java_Kafka_IO_Dataflow.yml"
+  pull_request_target:
+    branches: ['master', 'release-*']
+    paths:
+      - "sdks/java/io/kafka/**"
+      - "sdks/java/testing/test-utils/**"
+      - "sdks/java/expansion-service/**"
+      - "sdks/java/io/synthetic/**"
+      - "sdks/java/io/expansion-service/**"
+      - 'release/trigger_all_tests.json'
+      - '.github/trigger_files/beam_PreCommit_Java_Kafka_IO_Direct.json'
+  issue_comment:
+    types: [created]
+  schedule:
+    - cron: '45 1/6 * * *'
+  workflow_dispatch:
+
+#Setting explicit permissions for the action to avoid the default permissions which are `write-all` in case of pull_request_target event
+permissions:
+  actions: write
+  pull-requests: write
+  checks: write
+  contents: read
+  deployments: read
+  id-token: none
+  issues: write
+  discussions: read
+  packages: read
+  pages: read
+  repository-projects: read
+  security-events: read
+  statuses: read
+
+# This allows a subsequently queued workflow run to interrupt previous runs
+concurrency:
+  group: '${{ github.workflow }} @ ${{ github.event.issue.number || github.event.pull_request.head.label || github.sha || github.head_ref || github.ref }}-${{ github.event.schedule || github.event.comment.id || github.event.sender.login }}'
+  cancel-in-progress: true
+
+env:
+  DEVELOCITY_ACCESS_KEY: ${{ secrets.DEVELOCITY_ACCESS_KEY }}
+  GRADLE_ENTERPRISE_CACHE_USERNAME: ${{ secrets.GE_CACHE_USERNAME }}
+  GRADLE_ENTERPRISE_CACHE_PASSWORD: ${{ secrets.GE_CACHE_PASSWORD }}
+
+jobs:
+  beam_PreCommit_Java_Kafka_IO_Dataflow:
+    name: ${{ matrix.job_name }} (${{ matrix.job_phrase }})
+    strategy:
+      matrix:
+        job_name: ["beam_PreCommit_Java_Kafka_IO_Dataflow"]
+        job_phrase: ["Run Java_Kafka_IO_Dataflow PreCommit"]
+    timeout-minutes: 120
+    if: |
+      github.event_name == 'push' ||
+      github.event_name == 'pull_request_target' ||
+      (github.event_name == 'schedule' && github.repository == 'apache/beam') ||
+      github.event_name == 'workflow_dispatch' ||
+      github.event.comment.body == 'Run Java_Kafka_IO_Dataflow PreCommit'
+    runs-on: [self-hosted, ubuntu-20.04, main]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup repository
+        uses: ./.github/actions/setup-action
+        with:
+          comment_phrase: ${{ matrix.job_phrase }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          github_job: ${{ matrix.job_name }} (${{ matrix.job_phrase }})
+      - name: Setup environment
+        uses: ./.github/actions/setup-environment-action
+      - name: Authenticate with GCP
+          uses: google-github-actions/auth@v2
+          with:
+            service_account: ${{ secrets.GCP_SA_EMAIL }}
+            credentials_json: ${{ secrets.GCP_SA_KEY }}
+      - name: run Kafka IO build script
+        uses: ./.github/actions/gradle-command-self-hosted-action
+        with:
+          gradle-command: :sdks:java:io:kafka:build :sdks:java:io:kafka:gmk-tests:build :sdks:java:io:kafka:gmk-tests:KafkaOnGmkIT
+          arguments: |
+            -PdisableSpotlessCheck=true \
+            -PdisableCheckStyle=true \
+            --no-parallel \
+      - name: Archive JUnit Test Results
+        uses: actions/upload-artifact@v4
+        if: ${{ !success() }}
+        with:
+          name: JUnit Test Results
+          path: "**/build/reports/tests/"
+      - name: Publish JUnit Test Results
+        uses: EnricoMi/publish-unit-test-result-action@v2
+        if: always()
+        with:
+          commit: '${{ env.prsha || env.GITHUB_SHA }}'
+          comment_mode: ${{ github.event_name == 'issue_comment'  && 'always' || 'off' }}
+          files: '**/build/test-results/**/*.xml'
+          large_files: true
+      - name: Archive SpotBugs Results
+        uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: SpotBugs Results
+          path: '**/build/reports/spotbugs/*.html'
+      - name: Publish SpotBugs Results
+        uses: jwgmeligmeyling/spotbugs-github-action@v1.2
+        if: always()
+        with:
+          name: Publish SpotBugs
+          path: '**/build/reports/spotbugs/*.html'

sdks/java/io/kafka/gmk-tests/build.gradle

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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * License); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import org.apache.beam.gradle.kafka.KafkaTestUtilities
+import java.util.stream.Collectors
+
+plugins { id 'org.apache.beam.module' }
+applyJavaNature(
+        automaticModuleName: 'org.apache.beam.sdk.io.kafka.gmk-tests',
+        mavenRepositories: [
+                [id: 'io.confluent', url: 'https://packages.confluent.io/maven/']
+        ],
+        publish: 'False'
+)
+
+description = "Apache Beam :: SDKs :: Java :: IO :: Kafka :: GMK Tests"
+ext {
+    summary = "Library to read Kafka topics."
+    // newer versions e.g. 7.6.* require dropping support for older kafka versions.
+    confluentVersion = "7.5.5"
+}
+
+provideIntegrationTestingDependencies()
+
+configurations.all {
+    resolutionStrategy.force 'org.apache.kafka:kafka-clients:3.9.0'
+}
+
+dependencies {
+    testImplementation library.java.vendored_guava_32_1_2_jre
+    provided library.java.jackson_dataformat_csv
+    permitUnusedDeclared library.java.jackson_dataformat_csv
+    testImplementation project(path: ":sdks:java:core", configuration: "shadow")
+    testImplementation project(path: ":model:pipeline", configuration: "shadow")
+    testImplementation project(":sdks:java:extensions:avro")
+    testImplementation project(":sdks:java:extensions:protobuf")
+    testImplementation project(":sdks:java:expansion-service")
+    permitUnusedDeclared project(":sdks:java:expansion-service") // BEAM-11761
+    implementation library.java.avro
+    // Get back to "provided" since 2.14
+    provided library.java.kafka_clients
+    if (JavaVersion.current().compareTo(JavaVersion.VERSION_21) >= 0) {
+        // this dependency is a provided dependency for kafka-avro-serializer. It is not needed to compile with Java<=17
+        // but needed for compile only under Java21, specifically, required for extending from AbstractKafkaAvroDeserializer
+        compileOnly library.java.kafka
+    }
+    testImplementation library.java.kafka_clients
+    testImplementation project(path: ":runners:core-java")
+    testImplementation library.java.slf4j_api
+    testImplementation library.java.joda_time
+    testImplementation library.java.jackson_annotations
+    testImplementation library.java.jackson_databind
+    testImplementation (group: 'com.google.cloud.hosted.kafka', name: 'managed-kafka-auth-login-handler', version: '1.0.5') {
+        // "kafka-clients" has to be provided since user can use its own version.
+        exclude group: 'org.apache.kafka', module: 'kafka-clients'
+    }
+    testImplementation ("io.confluent:kafka-avro-serializer:${confluentVersion}") {
+        // zookeeper depends on "spotbugs-annotations:3.1.9" which clashes with current
+        // "spotbugs-annotations:3.1.12" used in Beam. Not required.
+        exclude group: "org.apache.zookeeper", module: "zookeeper"
+        // "kafka-clients" has to be provided since user can use its own version.
+        exclude group: "org.apache.kafka", module: "kafka-clients"
+    }
+    testImplementation ("io.confluent:kafka-schema-registry-client:${confluentVersion}") {
+        // It depends on "spotbugs-annotations:3.1.9" which clashes with current
+        // "spotbugs-annotations:3.1.12" used in Beam. Not required.
+        exclude group: "org.apache.zookeeper", module: "zookeeper"
+        // "kafka-clients" has to be provided since user can use its own version.
+        exclude group: "org.apache.kafka", module: "kafka-clients"
+    }
+    // everit_json is needed for Kafka Read SchemaTransform tests that rely on JSON-schema translation.
+    permitUnusedDeclared library.java.everit_json_schema
+    provided library.java.everit_json_schema
+    testImplementation project(path: ":sdks:java:core", configuration: "shadowTest")
+    testImplementation project(":sdks:java:io:synthetic")
+    testImplementation project(":sdks:java:managed")
+    testImplementation project(path: ":sdks:java:extensions:avro", configuration: "testRuntimeMigration")
+    testImplementation project(path: ":sdks:java:extensions:protobuf", configuration: "testRuntimeMigration")
+    testImplementation project(path: ":sdks:java:io:common")
+    testImplementation project(path: ":sdks:java:testing:test-utils")
+    testImplementation project(path: ":sdks:java:io:kafka")
+    // For testing Cross-language transforms
+    testImplementation library.java.avro
+    testImplementation library.java.junit
+    testImplementation library.java.mockito_core
+    testRuntimeOnly library.java.mockito_inline
+    testImplementation library.java.testcontainers_kafka
+    testRuntimeOnly library.java.slf4j_jdk14
+    testRuntimeOnly project(path: ":runners:direct-java", configuration: "shadow")
+    testImplementation project(path: ":runners:google-cloud-dataflow-java")
+    testImplementation project(path: ":sdks:java:extensions:google-cloud-platform-core")
+    testImplementation project(path: ":sdks:java:io:google-cloud-platform")
+    testImplementation "org.apache.kafka:kafka-clients:3.9.0"
+    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.8.1'
+    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.8.1'
+
+}
+
+tasks.register("kafkaOnGmkIT", KafkaTestUtilities.KafkaBatchIT, "3.9.0", "390", true, configurations, project)