BLD: Switch to JDK 17 from JDK 8

ci/docker/base.build.Dockerfile

@@ -11,7 +11,7 @@ RUN <<EOF
 set -euo pipefail
 
 apt-get update -y
-apt-get install -y -qq maven openjdk-8-jre openjdk-8-jdk
+apt-get install -y -qq maven openjdk-17-jre openjdk-17-jdk
 
 BUILD=1 ./ci/ci.sh init
 

ci/docker/data.build.Dockerfile

@@ -31,7 +31,7 @@ sudo rm -rf /var/lib/mongodb/mongod.lock
 if [[ $RAY_CI_JAVA_BUILD == 1 ]]; then
   # These packages increase the image size quite a bit, so we only install them
   # as needed.
-  sudo apt-get install -y -qq maven openjdk-8-jre openjdk-8-jdk
+  sudo apt-get install -y -qq maven openjdk-17-jre openjdk-17-jdk
 fi
 
 EOF

ci/docker/forge.Dockerfile

@@ -37,7 +37,7 @@ curl -fsSL https://deb.nodesource.com/setup_18.x | bash -
 apt-get update
 apt-get install -y \
   awscli docker-ce-cli nodejs build-essential python-is-python3 \
-  python3-pip openjdk-8-jre wget jq
+  python3-pip openjdk-17-jre wget jq
 
 # As a convention, we pin all python packages to a specific version. This
 # is to to make sure we can control version upgrades through code changes.

ci/env/install-hdfs.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends openjdk-8-jdk net-tools curl netcat gnupg libsnappy-dev && rm -rf /var/lib/apt/lists/*
+apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends openjdk-17-jdk net-tools curl netcat gnupg libsnappy-dev && rm -rf /var/lib/apt/lists/*
 
 export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64/
 

ci/env/install-java.sh

@@ -8,7 +8,7 @@ set -euxo pipefail
 SCRIPT_DIR=$(builtin cd "$(dirname "${BASH_SOURCE:-$0}")"; pwd)
 WORKSPACE_DIR="${SCRIPT_DIR}/../.."
 
-sudo apt-get install -y maven openjdk-8-jre openjdk-8-jdk
+sudo apt-get install -y maven openjdk-17-jre openjdk-17-jdk
 "${WORKSPACE_DIR}"/java/build-jar-multiplatform.sh linux
 
 # Pop caller's shell options (quietly)