while true
do
    java -Xms4G -Xmx4G \
    -XX:+AlwaysPreTouch \
    -XX:+DisableExplicitGC \
    -XX:+ParallelRefProcEnabled \
    -XX:+PerfDisableSharedMem \
    -XX:+UnlockExperimentalVMOptions \
    -XX:+UseG1GC \
    -XX:G1HeapRegionSize=8M \
    -XX:G1HeapWastePercent=5 \
    -XX:G1MaxNewSizePercent=40 \
    -XX:G1MixedGCCountTarget=4 \
    -XX:G1MixedGCLiveThresholdPercent=90 \
    -XX:G1NewSizePercent=30 \
    -XX:G1RSetUpdatingPauseTimePercent=5 \
    -XX:G1ReservePercent=20 \
    -XX:InitiatingHeapOccupancyPercent=15 \
    -XX:MaxGCPauseMillis=200 \
    -XX:MaxTenuringThreshold=1 \
    -XX:SurvivorRatio=32 \
    -Dusing.aikars.flags=https://mcflags.emc.gs \
    -Daikars.new.flags=true \
    -jar paper-1.21.6-48.jar nogui

    echo "Server restarting..."
    echo "Press CTRL + C to stop."
done