# Copyright (c) 2022, 2025 Oracle and/or its affiliates.

#

# Licensed under the Universal Permissive License v 1.0 as shown at https://oss.oracle.com/licenses/upl.

#

# ORACLE DOCKERFILES PROJECT

# --------------------------

# This is the Dockerfile for Oracle JDK 25 on Oracle Linux 9

#

# REQUIRED FILES TO BUILD THIS IMAGE

# ----------------------------------

# This dockerfile will download a copy of JDK 25 from

# https://download.oracle.com/java/25/latest/jdk-25_linux-<ARCH>_bin.tar.gz

#

# It will use either x64 or aarch64 depending on the target platform

#

# HOW TO BUILD THIS IMAGE

# -----------------------

# Run:

# $ docker build --file Dockerfile.ol9 --tag oracle/jdk:25 .

#

# This command is already scripted in build.sh so you can alternatively run

# $ bash build.sh

#

# The builder image will be used to uncompress the tar.gz file with the Java Runtime.

FROM oraclelinux:9 AS builder

LABEL maintainer="Aurelio Garcia-Ribeyro <aurelio.garciaribeyro@oracle.com>"

# Since the files are compressed as tar.gz first dnf install tar. gzip is already in oraclelinux:9

RUN set -eux; \

dnf install -y tar;

# Default to UTF-8 file.encoding

ENV LANG=en_US.UTF-8

# Environment variables for the builder image.

# Required to validate that you are using the correct file

ENV JAVA_URL=https://download.oracle.com/java/25/latest \

JAVA_HOME=/usr/java/jdk-25

##

SHELL ["/bin/bash", "-o", "pipefail", "-c"]

RUN set -eux; \

ARCH="$(uname -m)" && \

# Java uses just x64 in the name of the tarball

if [ "$ARCH" = "x86_64" ]; \

then ARCH="x64"; \

fi && \

JAVA_PKG="$JAVA_URL"/jdk-25_linux-"${ARCH}"_bin.tar.gz ; \

JAVA_SHA256=$(curl "$JAVA_PKG".sha256) ; \

curl --output /tmp/jdk.tgz "$JAVA_PKG" && \

echo "$JAVA_SHA256" */tmp/jdk.tgz | sha256sum -c; \

mkdir -p "$JAVA_HOME"; \

tar --extract --file /tmp/jdk.tgz --directory "$JAVA_HOME" --strip-components 1

## Get a fresh version of Oracle Linux 9 for the final image

FROM oraclelinux:9

# Default to UTF-8 file.encoding

ENV LANG=en_US.UTF-8

ENV JAVA_HOME=/usr/java/jdk-25

ENV PATH=$JAVA_HOME/bin:$PATH

# If you need the Java Version you can read it from the release file with

# JAVA_VERSION=$(sed -n '/^JAVA_VERSION="/{s///;s/"//;p;}' "$JAVA_HOME"/release);

# Copy the uncompressed Java Runtime from the builder image

COPY --from=builder $JAVA_HOME $JAVA_HOME

RUN set -eux; \

# Ensure we get the latest Oracle Linux 9 updates available at build time

dnf -y update; \

# JDK assumes freetype is available

dnf install -y \

freetype fontconfig \

; \

rm -rf /var/cache/dnf; \

ln -sfT "$JAVA_HOME" /usr/java/default; \

ln -sfT "$JAVA_HOME" /usr/java/latest; \

for bin in "$JAVA_HOME/bin/"*; do \

base="$(basename "$bin")"; \

[ ! -e "/usr/bin/$base" ]; \

alternatives --install "/usr/bin/$base" "$base" "$bin" 20000; \

done;

CMD ["jshell"]