fix Java install in devcontainer

It was downloading and installing `debuginfo`...

Since it's fixed, I can also remove `--disable-java` from GNU-R `./configure`.

Lastly, GNU-R needs `gfortran` at runtime.

.devcontainer/Dockerfile

@@ -1,18 +1,14 @@
 # This Dockerfile uses separate build arguments instead of VARIANT
-# TODO: Abstract distribution and version however much is possible.
-#   The download URL doesn't make this easy.
-# ARG TARGET_JAVA_DISTIBUTION=temurin
-# ARG TARGET_JAVA_VERSION=22
+ARG TARGET_JAVA_VERSION=22.0.2+9
 ARG TARGET_GNUR_VERSION=4.3.2
 ARG TARGET_DEBIAN_VERSION=bookworm
-FROM mcr.microsoft.com/devcontainers/base:${TARGET_DEBIAN_VERSION}
+FROM mcr.microsoft.com/devcontainers/base:$TARGET_DEBIAN_VERSION
 
 USER root
-# ARG TARGET_JAVA_DISTIBUTION
-# ARG TARGET_JAVA_VERSION
+ARG TARGET_JAVA_VERSION
 ARG TARGET_GNUR_VERSION
 ENV JAVA_HOME=/usr/lib/jvm/jdk
-ENV PATH="${JAVA_HOME}/bin:${PATH}"
+ENV PATH="$JAVA_HOME/bin:$PATH"
 # Default to UTF-8 file.encoding
 ENV LANG=en_US.UTF-8
 
@@ -27,13 +23,13 @@ RUN arch="$(dpkg --print-architecture)" \
 			;; \
 		*) echo >&2 "error: unsupported architecture: '$arch'"; exit 1 ;; \
 	esac \
-  && jdkUrl="https://github.com/adoptium/temurin22-binaries/releases/download/jdk-22.0.2%2B9/OpenJDK22U-debugimage_${arch1}_linux_hotspot_22.0.2_9.tar.gz" \
-  && wget --progress=dot:giga -O temurin.tar.gz "${jdkUrl}" \
-  && wget --progress=dot:giga -O sha256.txt "${jdkUrl}.sha256.txt"
+  && jdkUrl="https://github.com/adoptium/temurin22-binaries/releases/download/jdk-$TARGET_JAVA_VERSION/OpenJDK22U-jdk_${arch1}_linux_hotspot_$(echo $TARGET_JAVA_VERSION | tr '+' '_').tar.gz" \
+  && wget --progress=dot:giga -O temurin.tar.gz "$jdkUrl" \
+  && wget --progress=dot:giga -O sha256.txt "$jdkUrl.sha256.txt"
 
 RUN sha256Text=$(cat sha256.txt) \
-  && sha256=$(expr substr "${sha256Text}" 1 64) \
-  && echo "${sha256} temurin.tar.gz" | sha256sum --strict --check - \
+  && sha256=$(expr substr "$sha256Text" 1 64) \
+  && echo "$sha256 temurin.tar.gz" | sha256sum --strict --check - \
   && rm sha256.txt*
 
 RUN mkdir -p "$JAVA_HOME"
@@ -44,15 +40,16 @@ RUN tar --extract \
 		--no-same-owner
 RUN rm temurin.tar.gz*
 
-RUN ln -s ${JAVA_HOME} /docker-java-home
-RUN ln -s ${JAVA_HOME} /usr/local/openjdk-${TARGET_JAVA_VERSION}
+RUN ln -s $JAVA_HOME /docker-java-home
+RUN ln -s $JAVA_HOME /usr/local/openjdk-$(echo $TARGET_JAVA_VERSION | cut -d'-' -f1)
 
 # Install GNU-R
 # From https://cran.r-project.org/doc/manuals/r-release/R-admin.html#Essential-and-useful-other-programs-under-a-Unix_002dalike
-ARG GNUR_DEPENDENCIES="build-essential gfortran libreadline-dev zlib1g-dev libbz2-dev liblzma-dev libpcre2-dev"
+ARG GNUR_RUNTIME_DEPENDENCIES="build-essential gfortran"
+ARG GNUR_BUILD_DEPENDENCIES="libreadline-dev zlib1g-dev libbz2-dev liblzma-dev libpcre2-dev"
 
-RUN gnurUrl="https://cloud.r-project.org/src/base/R-$(printf %.1s ${TARGET_GNUR_VERSION})/R-${TARGET_GNUR_VERSION}.tar.gz" \
-  && wget --progress=dot:giga -O gnur.tar.gz "${gnurUrl}"
+RUN gnurUrl="https://cloud.r-project.org/src/base/R-$(printf %.1s $TARGET_GNUR_VERSION)/R-$TARGET_GNUR_VERSION.tar.gz" \
+  && wget --progress=dot:giga -O gnur.tar.gz "$gnurUrl"
 
 RUN mkdir -p /tmp/gnur
 RUN tar --extract \
@@ -62,19 +59,19 @@ RUN tar --extract \
     --no-same-owner
 RUN rm gnur.tar.gz*
 
-RUN apt-get update
-RUN DEBIAN_FRONTEND=noninteractive apt-get -y install --no-install-recommends ${GNUR_DEPENDENCIES}
+RUN DEBIAN_FRONTEND=noninteractive apt-get update
+RUN DEBIAN_FRONTEND=noninteractive apt-get -y install --no-install-recommends $GNUR_BUILD_DEPENDENCIES $GNUR_RUNTIME_DEPENDENCIES
 
-# `--disable-java` is because (for some reason, it's clearly set above) R can't find `JAVA_HOME`.
-# We don't use the Java support in R, so for now, instead of fixing that issue we disable it.
 RUN cd /tmp/gnur \
  && ./tools/rsync-recommended \
- && ./configure --prefix=/usr/local --disable-java --with-x=no \
+ && ./configure --prefix=/usr/local --with-x=no \
  && make \
  && make install
 RUN rm -rf /tmp/gnur
 
-RUN apt-get -y remove --purge ${GNUR_DEPENDENCIES}
+RUN DEBIAN_FRONTEND=noninteractive apt-get -y remove --purge $GNUR_BUILD_DEPENDENCIES
+# Fortran is needed at
+RUN DEBIAN_FRONTEND=noninteractive apt-get -y install --no-install-recommends gfortran
 RUN DEBIAN_FRONTEND=noninteractive apt-get -y autoremove
 
 # [Optional] Uncomment this section to install additional OS packages.