Fix for installing SDKMAN in ARMv7 image

Author: tw29845

images/java/ubuntu.Dockerfile

@@ -3,8 +3,11 @@ FROM codercom/enterprise-base:ubuntu
 ARG DEBIAN_FRONTEND="noninteractive"
 ARG SDKMAN_SHA512="a8fc6a336d31f2e4980cfe39ee9f11a0f2ee70bc721094b7ea63b953fd1675474765a4e273d6575ea207aa59c15f4fe867e963c0c47580f2131edc2ae8d4fd34"
 
+ARG STRING='${SDKMAN_SERVICE}/broker/download/native/install/${SDKMAN_NATIVE_VERSION}/${SDKMAN_PLATFORM}'
+ARG REPLACE='https://github.com/sdkman/sdkman-cli-native/releases/download/v${SDKMAN_NATIVE_VERSION}/sdkman-cli-native-${SDKMAN_NATIVE_VERSION}-aarch64-unknown-linux-gnu.zip'
+
 ENV SDKMAN_DIR="/home/coder/.sdkman" \
-    JAVA_VERSION="21.0.8-tem" \
+    JAVA_VERSION="21.0.8-librca" \
     GRADLE_VERSION="8.14.3" \
     MAVEN_VERSION="3.9.11" \
     MAVEN_CONFIG="/home/coder/.m2"
@@ -22,15 +25,18 @@ USER coder
 
 RUN curl -fsSL "https://get.sdkman.io?ci=true" -o /tmp/install_sdkman.sh && \
     echo "${SDKMAN_SHA512} /tmp/install_sdkman.sh" | sha512sum -c - && \
+    if uname -m | grep -qE '^armv[0-9]l$'; then \
+      echo "Updating SDKMAN Native CLI download URI"; \
+      sed -i "s|${STRING}|${REPLACE}|g" /tmp/install_sdkman.sh; \
+    fi && \
     bash /tmp/install_sdkman.sh && \
     rm /tmp/install_sdkman.sh && \
     bash -c "source ${SDKMAN_DIR}/bin/sdkman-init.sh && \
       sdk install java ${JAVA_VERSION} && \
-      sdk default java ${JAVA_VERSION} && \
       sdk install gradle ${GRADLE_VERSION} && \
-      sdk default gradle ${GRADLE_VERSION} && \
       sdk install maven ${MAVEN_VERSION} && \
-      sdk default maven ${MAVEN_VERSION} && \
       sdk flush archives && \
-      sdk flush temp && \
-      sdk current"
+      sdk flush temp"
+
+### Debugging
+RUN bash -c "source ${SDKMAN_DIR}/bin/sdkman-init.sh && java --version; mvn -v; gradle -v"