Update Dockerfile

Dockerfile

@@ -15,14 +15,17 @@ RUN apt-get update && \
         libsm6 \
         libxext6 \
         libxrender-dev \
-        # Java runtime and compiler
-        openjdk-17-jdk \
+        # Java runtime and compiler (headless version for containers)
+        openjdk-17-jdk-headless \
     && rm -rf /var/lib/apt/lists/*
 
 # Set JAVA_HOME environment variable
 ENV JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64
 ENV PATH="$JAVA_HOME/bin:$PATH"
 
+# JVM optimization for containers - limit memory usage
+ENV JAVA_OPTS="-Xms32m -Xmx256m -XX:ReservedCodeCacheSize=32m -XX:InitialCodeCacheSize=4m -XX:+UseSerialGC -XX:+TieredCompilation -XX:TieredStopAtLevel=1"
+
 # Verify installations
 RUN python3 --version && \
     gcc --version && \