move env directive out of heredoc

Author: razvan

spark-k8s/Dockerfile

@@ -319,10 +319,6 @@ microdnf install \
 microdnf clean all
 rm -rf /var/cache/yum
 
-# The base image (java-base) defines this to point to a JRE installation.
-# Spark Connect requires it to point to a JDK installation.
-ENV JAVA_HOME="/usr/lib/jvm/java-${JAVA_VERSION}-openjdk"
-
 ln -s /usr/bin/python${PYTHON} /usr/bin/python
 ln -s /usr/bin/pip-${PYTHON} /usr/bin/pip
 
@@ -336,6 +332,11 @@ chown -R ${STACKABLE_USER_UID}:0 /stackable
 chmod -R g=u /stackable
 EOF
 
+# The base image (java-base) defines this to point to a JRE installation.
+# Spark Connect requires it to point to a JDK installation.
+ENV JAVA_HOME="/usr/lib/jvm/java-${JAVA_VERSION}-openjdk"
+
+
 # ----------------------------------------
 # Attention: We are changing the group of all files in /stackable directly above
 # If you do any file based actions (copying / creating etc.) below this comment you