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diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
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+# Copyright 2020 The Error Prone Authors.
+#
+# Licensed 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: CI
+
+on:
+  push:
+    branches:
+    - master
+  pull_request:
+    branches:
+    - master
+
+jobs:
+  test:
+    name: "JDK ${{ matrix.java }} on ${{ matrix.os }}"
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ ubuntu-latest ]
+        java: [ 17, 11 ]
+        experimental: [ false ]
+        include:
+          # Only test on macos and windows with a single recent JDK to avoid a
+          # combinatorial explosion of test configurations.
+          - os: macos-latest
+            java: 17
+            experimental: false
+          - os: windows-latest
+            java: 17
+            experimental: false
+          - os: ubuntu-latest
+            java: 18-ea
+            experimental: true
+    runs-on: ${{ matrix.os }}
+    continue-on-error: ${{ matrix.experimental }}
+    steps:
+      - name: Cancel previous
+        uses: styfle/cancel-workflow-action@0.9.1
+        with:
+          access_token: ${{ github.token }}
+      - name: 'Check out repository'
+        uses: actions/checkout@v2
+      - name: 'Set up JDK ${{ matrix.java }}'
+        uses: actions/setup-java@v2
+        with:
+          java-version: ${{ matrix.java }}
+          distribution: 'zulu'
+          cache: 'maven'
+      - name: 'Install'
+        shell: bash
+        run: mvn install -DskipTests=true -Dmaven.javadoc.skip=true -B -V
+      - name: 'Test'
+        shell: bash
+        run: mvn test -B
+
+  publish_snapshot:
+    name: 'Publish snapshot'
+    needs: test
+    if: github.event_name == 'push' && github.repository == 'google/google-java-format' && github.ref == 'refs/heads/master'
+    runs-on: ubuntu-latest
+    steps:
+      - name: 'Check out repository'
+        uses: actions/checkout@v2
+      - name: 'Set up JDK 17'
+        uses: actions/setup-java@v2
+        with:
+          java-version: 17
+          distribution: 'zulu'
+          cache: 'maven'
+          server-id: sonatype-nexus-snapshots
+          server-username: CI_DEPLOY_USERNAME
+          server-password: CI_DEPLOY_PASSWORD
+      - name: 'Publish'
+        env:
+          CI_DEPLOY_USERNAME: ${{ secrets.CI_DEPLOY_USERNAME }}
+          CI_DEPLOY_PASSWORD: ${{ secrets.CI_DEPLOY_PASSWORD }}
+        run: mvn -pl '!eclipse_plugin' source:jar deploy -B -DskipTests=true -Dinvoker.skip=true -Dmaven.javadoc.skip=true