feat: use full JDK

Author: sap1ens

flink-sql-runner/src/main/docker/Dockerfile

@@ -21,6 +21,17 @@ ARG TARGETARCH
 
 USER root
 
+# Install JDK 17 (replacing the default JRE)
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+        openjdk-17-jdk-headless \
+    && rm -rf /var/lib/apt/lists/*
+
+# Update JAVA_HOME to point to JDK (handles both amd64 and arm64)
+RUN ln -sf /usr/lib/jvm/java-17-openjdk-* /usr/lib/jvm/java-17-openjdk
+ENV JAVA_HOME=/usr/lib/jvm/java-17-openjdk
+ENV PATH=$JAVA_HOME/bin:$PATH
+
 RUN set -eux; \
     case "${TARGETARCH:-$(uname -m)}" in \
       x86_64) ASYNC_PROFILER_ARCH="x64" ;; \