Dockerfile

ARG IMAGE_BASE='ubuntu:24.04'
FROM ${IMAGE_BASE}

# Default to UTF-8 file.encoding
ENV LANG='en_US.UTF-8' LANGUAGE='en_US:en' LC_ALL='en_US.UTF-8'

RUN set -eux; \
    apt-get update; \
    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends wget ca-certificates locales; \
    echo "en_US.UTF-8 UTF-8" >> /etc/locale.gen; \
    locale-gen en_US.UTF-8; \
    rm -rf /var/lib/apt/lists/*

ARG JBR_RELEASE
RUN : "${JBR_RELEASE:?Build argument needs to be set and non-empty.}"

ENV JAVA_HOME=/opt/java/${JBR_RELEASE}
ENV PATH=$JAVA_HOME/bin:$PATH

# JBR Install
RUN set -eux; \
    wget -O /tmp/${JBR_RELEASE}.tar.gz https://cache-redirector.jetbrains.com/intellij-jbr/${JBR_RELEASE}.tar.gz; \
    mkdir -p "$JAVA_HOME"; \
    tar --extract \
        --file /tmp/${JBR_RELEASE}.tar.gz \
        --directory "$JAVA_HOME" \
        --strip-components 1 \
        --no-same-owner \
    ; \
    rm -f /tmp/${JBR_RELEASE}.tar.gz ${JAVA_HOME}/lib/src.zip; \
    java -Xshare:dump;

# From adoptium/containers
RUN set -eux; \
    echo "Verifying install ..."; \
    echo "javac --version"; javac --version; \
    echo "java --version"; java --version; \
    echo "Complete."

# HotswapAgent
ARG HOTSWAPAGENT_URL='https://github.com/HotswapProjects/HotswapAgent/releases/download/RELEASE-2.0.0/hotswap-agent-2.0.0.jar'
RUN set -eux; \
    mkdir -p "$JAVA_HOME/lib/hotswap"; \
    wget -O ${JAVA_HOME}/lib/hotswap/hotswap-agent.jar ${HOTSWAPAGENT_URL};