This PR upgrades PL/Java to version 1.6.10 and adapts it for Cloudberry Database, along with adding a Docker-based CI testing environment.

.appveyor/appveyor_download_java.ps1

@@ -0,0 +1,20 @@
+Import-Module BitsTransfer
+Install-Package -Force 7Zip4Powershell -ProviderName PowerShellGet
+if ($Env:JDK -eq 9)
+{
+    $url = "https://download.java.net/java/GA/jdk9/9.0.4/binaries/openjdk-9.0.4_windows-x64_bin.tar.gz"
+    $out = "C:\Program Files\Java\jdk9"
+    Start-BitsTransfer -Source $url -Destination "$out.tar.gz"
+    Expand-7Zip "$out.tar.gz" "$out"
+    Expand-7Zip "$out\jdk9.tar" "$out"
+    Move-Item "$out\jdk-9.0.4\*" "$out"
+}
+if ($Env:JDK -eq 10)
+{
+    $url = "https://download.java.net/java/GA/jdk10/10/binaries/openjdk-10_windows-x64_bin.tar.gz"
+    $out = "C:\Program Files\Java\jdk10"
+    Start-BitsTransfer -Source $url -Destination "$out.tar.gz"
+    Expand-7Zip "$out.tar.gz" "$out"
+    Expand-7Zip "$out\jdk10.tar" "$out"
+    Move-Item "$out\jdk-10\*" "$out"
+}

.appveyor/appveyor_mingw.sh

@@ -0,0 +1,14 @@
+set -e
+JAVA_HOME="C:\Program Files\Java\jdk$1"
+libjvm="$JAVA_HOME\bin\server\jvm.dll"
+PATH=$JAVA_HOME/bin:$PATH
+javac -version
+pacman -S mingw-w64-x86_64-postgresql --noconfirm
+pgConfig='C:\msys64\mingw64\bin\pg_config'
+"$pgConfig"
+cd /c/projects/pljava
+mvn clean install \
+  -Dpgsql.pgconfig="$pgConfig" \
+  -Dpljava.libjvmdefault="$libjvm" \
+  -Psaxon-examples -Ppgjdbc-ng --batch-mode \
+  -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn

.appveyor/appveyor_mingw_or_msvc.bat

@@ -0,0 +1,22 @@
+REM a bat file because PowerShell makes a mess of stderr output, and a multiline
+REM command intended for CMD in appveyor.yml gets broken up.
+
+IF %SYS%==MINGW (
+  set pgConfig=C:\msys64\mingw64\bin\pg_config
+) ELSE (
+  set pgConfig=%ProgramFiles%\PostgreSQL\%PG%\bin\pg_config
+  set libjvm=%JAVA_HOME%/bin/server/jvm.dll
+)
+
+IF %SYS%==MINGW (
+  C:\msys64\usr\bin\env MSYSTEM=MINGW64 ^
+    C:\msys64\usr\bin\bash -l ^
+    -c "/c/projects/pljava/.appveyor/appveyor_mingw.sh %JDK%"
+) ELSE (
+  "%pgConfig%"
+  mvn clean install ^
+    -Dpgsql.pgconfig="%pgConfig%" ^
+    -Dpljava.libjvmdefault="%libjvm%" ^
+    -Psaxon-examples -Ppgjdbc-ng --batch-mode ^
+    -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn
+)

.editorconfig

@@ -0,0 +1,15 @@
+root = true
+
+[*.{c,h,java,xml,ddr,project}]
+indent_style = tab
+indent_size = tab
+tab_width = 4
+
+[*.css]
+indent_style = space
+indent_size = 2
+
+# Imported from another project with different indentation
+[JarX.java]
+indent_style = space
+indent_size = 2

.github/workflows/cloudberry-ci.yml

@@ -0,0 +1,130 @@
+name: Cloudberry PL/Java CI
+
+on:
+  pull_request:
+    branches: [ main ]
+    types: [opened, synchronize, reopened, edited]
+  push:
+    branches: [ main ]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  CLOUDBERRY_REPO: apache/cloudberry
+  CLOUDBERRY_REF: main
+  COMPOSE_FILE: pljava/concourse/docker/ubuntu22.04/docker-compose.yml
+  CONTAINER_NAME: cbdb-pljava
+
+jobs:
+  ci:
+    name: Build + Smoke (Docker)
+    runs-on: ubuntu-latest
+    timeout-minutes: 180
+    steps:
+      - name: Free disk space
+        run: |
+          sudo rm -rf /usr/share/dotnet || true
+          sudo rm -rf /opt/ghc || true
+          sudo rm -rf /usr/local/share/boost || true
+          sudo rm -rf /usr/local/lib/android || true
+          sudo rm -rf /opt/hostedtoolcache || true
+          sudo docker system prune -af || true
+          df -h
+
+      - name: Checkout PL/Java (this repo)
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+          path: pljava
+
+      - name: Checkout Cloudberry source
+        uses: actions/checkout@v4
+        with:
+          repository: ${{ env.CLOUDBERRY_REPO }}
+          ref: ${{ env.CLOUDBERRY_REF }}
+          path: cloudberry
+          submodules: true
+
+      - name: Build and start dev container
+        run: |
+          docker compose -f ${{ env.COMPOSE_FILE }} down -v || true
+          docker compose -f ${{ env.COMPOSE_FILE }} up -d
+          docker exec ${{ env.CONTAINER_NAME }} sudo find /home/gpadmin/workspace/cloudberry -path /home/gpadmin/workspace/cloudberry/.git -prune -o -exec chown gpadmin:gpadmin {} +
+          docker exec ${{ env.CONTAINER_NAME }} sudo find /home/gpadmin/workspace/pljava -path /home/gpadmin/workspace/pljava/.git -prune -o -exec chown gpadmin:gpadmin {} +
+
+      - name: Build Cloudberry + PL/Java and run tests (installcheck)
+        run: |
+          docker exec ${{ env.CONTAINER_NAME }} bash -lc "bash /home/gpadmin/workspace/pljava/concourse/docker/ubuntu22.04/scripts/entrypoint.sh"
+
+      - name: Collect logs and results
+        if: always()
+        run: |
+          mkdir -p artifacts
+          docker logs ${{ env.CONTAINER_NAME }} > artifacts/cbdb-pljava.log 2>&1 || true
+          docker exec ${{ env.CONTAINER_NAME }} bash -lc "source /usr/local/cloudberry-db/cloudberry-env.sh && source /home/gpadmin/workspace/cloudberry/gpAux/gpdemo/gpdemo-env.sh && gpstate -s" > artifacts/gpstate.txt 2>&1 || true
+          docker exec ${{ env.CONTAINER_NAME }} bash -lc "source /usr/local/cloudberry-db/cloudberry-env.sh && source /home/gpadmin/workspace/cloudberry/gpAux/gpdemo/gpdemo-env.sh && psql -d template1 -c 'select version()'" > artifacts/version.txt 2>&1 || true
+
+          # Regression outputs (if present)
+          if [ -d pljava/gpdb/tests/results ]; then
+            tar czf artifacts/pljava-regress-results.tar.gz -C pljava gpdb/tests/results || true
+          fi
+          ls -la pljava/gpdb/tests/regression.* 2>/dev/null || true
+          cp -v pljava/gpdb/tests/regression.* artifacts/ 2>/dev/null || true
+
+          # Cloudberry demo cluster logs (if present)
+          if [ -d cloudberry/gpAux/gpdemo ]; then
+            find cloudberry/gpAux/gpdemo -maxdepth 4 -type d \( -name pg_log -o -name log \) -print 2>/dev/null || true
+            tar czf artifacts/cloudberry-demo-logs.tar.gz -C cloudberry gpAux/gpdemo 2>/dev/null || true
+          fi
+
+      - name: Summarize installcheck
+        if: always()
+        run: |
+          LOG="pljava/gpdb/tests/results/installcheck.log"
+          {
+            echo "## PL/Java installcheck"
+            if [ -f "$LOG" ]; then
+              echo ""
+              echo "- Log: \`$LOG\`"
+              echo "- Test results dir: \`pljava/gpdb/tests/results/\`"
+              echo ""
+              TOTAL=$(grep -E "^[[:space:]]*test .* \\.\\.\\." -c "$LOG" || true)
+              OK=$(grep -E "^[[:space:]]*test .* \\.\\.\\. ok" -c "$LOG" || true)
+              FAILED=$(grep -E "^[[:space:]]*test .* \\.\\.\\. FAILED" -c "$LOG" || true)
+              echo "- Total: $TOTAL"
+              echo "- ok: $OK"
+              echo "- FAILED: $FAILED"
+              echo ""
+              echo "Last 50 lines:"
+              echo ""
+              echo '```'
+              tail -n 50 "$LOG" || true
+              echo '```'
+            else
+              echo ""
+              echo "- No \`installcheck.log\` found (build may have failed early)."
+            fi
+          } >> "$GITHUB_STEP_SUMMARY"
+
+      - name: Upload artifacts
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: logs-and-results
+          path: |
+            artifacts/**
+            pljava/gpdb/tests/results/**
+            pljava/gpdb/tests/regression.*
+          if-no-files-found: ignore
+          retention-days: 7
+
+      - name: Cleanup
+        if: always()
+        run: |
+          docker compose -f ${{ env.COMPOSE_FILE }} down -v || true

.gitignore

@@ -1,6 +1,7 @@
 /.classpath
 /.project
 /.settings
+.idea/
 target/site
 target/staging
 target/javadoc-bundle-options
@@ -10,4 +11,9 @@ pljava-so/target/
 target/
 *.so
 *.zip
-concourse/secrets/
+concourse/secrets/
+nar-maven-plugin/
+nar-maven-plugin.tar.gz
+gpdb/tests/results/
+gpdb/tests/regression.*
+artifacts/

.travis.yml

@@ -0,0 +1,156 @@
+if: false
+language: minimal
+os:
+  - linux
+arch:
+  - amd64
+  - ppc64le
+dist: bionic
+env:
+  - POSTGRESQL_VERSION: 13
+    JAVA_VERSION: 15
+    JVM_IMPL: hotspot
+    MVN_VERSION: 3.5.2
+  - POSTGRESQL_VERSION: 12
+    JAVA_VERSION: 14
+    JVM_IMPL: hotspot
+    MVN_VERSION: 3.5.2
+  - POSTGRESQL_VERSION: 12
+    JAVA_VERSION: 14
+    JVM_IMPL: openj9
+    MVN_VERSION: 3.6.3
+  - POSTGRESQL_VERSION: 12
+    JAVA_VERSION: 11
+    JVM_IMPL: hotspot
+    MVN_VERSION: 3.6.3
+  - POSTGRESQL_VERSION: 12
+    JAVA_VERSION: 9
+    JVM_IMPL: hotspot
+    MVN_VERSION: 3.6.3
+  - POSTGRESQL_VERSION: 10
+    JAVA_VERSION: 14
+    JVM_IMPL: hotspot
+    MVN_VERSION: 3.6.3
+  - POSTGRESQL_VERSION: 9.5
+    JAVA_VERSION: 14
+    JVM_IMPL: hotspot
+    MVN_VERSION: 3.6.3
+
+jobs:
+  exclude:
+    - arch: ppc64le
+      env:
+        POSTGRESQL_VERSION: 12
+        JAVA_VERSION: 9
+        JVM_IMPL: hotspot
+        MVN_VERSION: 3.6.3
+  include:
+    - os: osx
+      osx_image: xcode11
+      arch: amd64
+      env:
+        - POSTGRESQL_VERSION: 11
+          JAVA_VERSION: 14
+          JVM_IMPL: hotspot
+          MVN_VERSION: 3.6.3
+    - os: osx
+      osx_image: xcode11
+      arch: amd64
+      env:
+        - POSTGRESQL_VERSION: 10
+          JAVA_VERSION: 14
+          JVM_IMPL: hotspot
+          MVN_VERSION: 3.6.3
+    - os: osx
+      osx_image: xcode11
+      arch: amd64
+      env:
+        - POSTGRESQL_VERSION: 9.5
+          JAVA_VERSION: 14
+          JVM_IMPL: hotspot
+          MVN_VERSION: 3.6.3
+
+cache:
+  directories:
+    - $HOME/.m2
+
+before_install: |
+  javaUrl=https://api.adoptopenjdk.net/v3/binary/latest
+  javaUrl="$javaUrl/$JAVA_VERSION/ga/${TRAVIS_OS_NAME//osx/mac}"
+  javaUrl="$javaUrl/${TRAVIS_CPU_ARCH//amd64/x64}/jdk"
+  javaUrl="$javaUrl/$JVM_IMPL/normal/adoptopenjdk"
+
+  installJdk=$(false && which install-jdk.sh) || {
+    wget https://raw.githubusercontent.com/sormuras/bach/8c457fd6e46bd9f3f575867dd0c9af1d7edfd5b4/install-jdk.sh
+    installJdk=./install-jdk.sh
+
+    printf '%s\n%s\n%s\n%s\n%s\n' \
+      '--- install-jdk.sh' \
+      '+++ install-jdk.sh' \
+      '@@ -257 +257 @@' \
+      '-            target="${workspace}"/$(tar --list ${tar_options} | head -2 | tail -1 | cut -f 2 -d '"'/' -)/Contents/Home" \
+      '+            target="${workspace}"/$(tar --list ${tar_options} | sed -n '"'/\/bin\/javac/s///p')" \
+    | patch "$installJdk"
+  }
+
+  [[ $JAVA_VERSION == 9 ]] && certs=--cacerts || unset certs
+
+  . "$installJdk" --url "$javaUrl" ${certs+"$certs"}
+
+  mvnUrl=https://archive.apache.org/dist/maven/maven-3
+  mvnUrl="$mvnUrl/$MVN_VERSION/binaries/apache-maven-$MVN_VERSION-bin.tar.gz"
+
+  wget --no-verbose "$mvnUrl" && tar xzf "apache-maven-$MVN_VERSION-bin.tar.gz"
+  mvn="./apache-maven-$MVN_VERSION/bin/mvn"
+  "$mvn" --version
+
+  . .travis/travis_install_postgresql.sh
+
+install: |
+  "$pgConfig"
+
+  if [ "$TRAVIS_OS_NAME" = "osx" ]; then
+      libjvm_name="libjli.dylib"
+  else
+      libjvm_name="libjvm.so"
+  fi
+  libjvm=$(find "$JAVA_HOME" -mindepth 2 -name $libjvm_name | head -n 1)
+
+  "$mvn" clean install --batch-mode \
+   -Dpgsql.pgconfig="$pgConfig" \
+   -Dpljava.libjvmdefault="$libjvm" \
+   -Psaxon-examples -Ppgjdbc \
+   -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn
+
+script: |
+  packageJar=$(find pljava-packaging -name pljava-pg*.jar -print)
+
+  mavenRepo="$HOME/.m2/repository"
+
+  saxonVer=$(
+    find "$mavenRepo/net/sf/saxon/Saxon-HE" -name 'Saxon-HE-*.jar' -print |
+    sort |
+    tail -n 1
+  )
+  saxonVer=${saxonVer%/*}
+  saxonVer=${saxonVer##*/}
+
+  jdbcJar=$(
+    find "$mavenRepo/org/postgresql/postgresql" \
+      -name 'postgresql-*.jar' -print |
+    sort |
+    tail -n 1
+  )
+
+  sudo "$JAVA_HOME"/bin/java -Dpgconfig="$pgConfig" -jar "$packageJar"
+
+  "$JAVA_HOME"/bin/jshell \
+    -execution local \
+    "-J--class-path=$packageJar:$jdbcJar" \
+    "--class-path=$packageJar" \
+    "-J--add-modules=java.sql.rowset" \
+    "-J-Dpgconfig=$pgConfig" \
+    "-J-DmavenRepo=$mavenRepo" \
+    "-J-DsaxonVer=$saxonVer" \
+    CI/integration
+  : travis wanted something here at the end once