chore: Update JVM argument handling for unsafe memory access based on JDK version

Author: bednar

.circleci/config.yml

@@ -70,7 +70,7 @@ jobs:
         default: docker-amd64-image
       arg-line:
         type: string
-        default: "--add-opens=java.base/java.nio=ALL-UNNAMED --sun-misc-unsafe-memory-access=allow"
+        default: "--add-opens=java.base/java.nio=ALL-UNNAMED"
     executor:
       name: << parameters.exe >>
       maven-image: << parameters.maven-image >>
@@ -91,7 +91,17 @@ jobs:
       - run:
           name: "Running tests"
           command: |
-            mvn -B -U clean install -DargLine="@{argLine} << parameters.arg-line >>"
+            # Append --sun-misc-unsafe-memory-access=allow only for JDK >= 23
+            JAVA_VERSION_RAW=$(java -version 2>&1 | awk -F\" '/version/ {print $2}')
+            JAVA_MAJOR=$(echo "$JAVA_VERSION_RAW" | awk -F. '{print $1}')
+            if [ "$JAVA_MAJOR" = "1" ]; then JAVA_MAJOR=$(echo "$JAVA_VERSION_RAW" | awk -F. '{print $2}'); fi
+            # Normalize to numeric in case of early access (e.g., 25-ea)
+            JAVA_MAJOR_NUM=$(echo "$JAVA_MAJOR" | sed 's/[^0-9].*$//')
+            EXTRA_ARG_LINE=""
+            if [ -n "$JAVA_MAJOR_NUM" ] && [ "$JAVA_MAJOR_NUM" -ge 23 ]; then
+              EXTRA_ARG_LINE=" --sun-misc-unsafe-memory-access=allow"
+            fi
+            mvn -B -U clean install -DargLine="@{argLine} << parameters.arg-line >>${EXTRA_ARG_LINE}"
       - save_cache:
           name: Saving Maven Cache
           key: *cache-key
@@ -224,6 +234,14 @@ workflows:
             parameters:
               exe: [ docker-amd64-image, docker-arm64-image ]
               maven-image: [ << pipeline.parameters.default-maven-image >>, "cimg/openjdk:17.0", "cimg/openjdk:21.0", "cimg/openjdk:25.0" ]
+              arg-line: [ "--add-opens=java.base/java.nio=ALL-UNNAMED", "--add-opens=java.base/java.nio=ALL-UNNAMED --sun-misc-unsafe-memory-access=allow" ]
+            exclude:
+              - maven-image: << pipeline.parameters.default-maven-image >>
+                arg-line: "--add-opens=java.base/java.nio=ALL-UNNAMED --sun-misc-unsafe-memory-access=allow"
+              - maven-image: "cimg/openjdk:17.0"
+                arg-line: "--add-opens=java.base/java.nio=ALL-UNNAMED --sun-misc-unsafe-memory-access=allow"
+              - maven-image: "cimg/openjdk:21.0"
+                arg-line: "--add-opens=java.base/java.nio=ALL-UNNAMED --sun-misc-unsafe-memory-access=allow"
       - deploy-snapshot:
           requires:
             - check-dependencies