Fix SDKMAN GLIBC 2.30 incompatibility on RHEL 8 family systems

src/java/devcontainer-feature.json

@@ -1,6 +1,6 @@
 {
   "id": "java",
-  "version": "1.7.0",
+  "version": "1.7.2",
   "name": "Java (via SDKMAN!)",
   "documentationURL": "https://github.com/devcontainers/features/tree/main/src/java",
   "description": "Installs Java, SDKMAN! (if not installed), and needed dependencies.",

src/java/install.sh

@@ -297,7 +297,28 @@ if [ ! -d "${SDKMAN_DIR}" ]; then
     usermod -a -G sdkman ${USERNAME}
     umask 0002
     # Install SDKMAN
+    # For RHEL 8 systems (glibc 2.28), disable native version to avoid glibc compatibility issues
+    # SDKMAN native binaries require glibc 2.30+ which is not available in RHEL 8 / AlmaLinux 8 / Rocky 8
+    if [ "${ADJUSTED_ID}" = "rhel" ] && [ "${MAJOR_VERSION_ID}" = "8" ]; then
+        export SDKMAN_NATIVE_VERSION="false"
+    fi
     curl -sSL "https://get.sdkman.io?rcupdate=false" | bash
+    # For RHEL 8 systems, also disable native CLI in config file and remove native binaries
+    if [ "${ADJUSTED_ID}" = "rhel" ] && [ "${MAJOR_VERSION_ID}" = "8" ]; then
+        # Disable native CLI in config to prevent future usage
+        # The SDKMAN config key is sdkman_native_enable (checked in sdkman-main.sh)
+        if [ -f "${SDKMAN_DIR}/etc/config" ]; then
+            if grep -q "sdkman_native_enable" "${SDKMAN_DIR}/etc/config"; then
+                sed -i 's/sdkman_native_enable=.*/sdkman_native_enable=false/' "${SDKMAN_DIR}/etc/config"
+            else
+                echo "sdkman_native_enable=false" >> "${SDKMAN_DIR}/etc/config"
+            fi
+        fi
+        # Remove native binaries if they were installed
+        if [ -d "${SDKMAN_DIR}/libexec" ]; then
+            rm -rf "${SDKMAN_DIR}/libexec"
+        fi
+    fi
     chown -R "${USERNAME}:sdkman" ${SDKMAN_DIR}
     find ${SDKMAN_DIR} -type d -print0 | xargs -d '\n' -0 chmod g+s
     # Add sourcing of sdkman into bashrc/zshrc files (unless disabled)

test/java/install_latest_version.sh

@@ -9,7 +9,7 @@ echo 'public class HelloWorld { public static void main(String[] args) { System.
 javac HelloWorld.java
 
 check "hello world" /bin/bash -c "java HelloWorld | grep "Hello, World!""
-check "java version latest installed" grep "24" <(java --version)
+check "java version latest installed" grep "25" <(java --version)
 
 # Report result
 reportResults