#!/bin/bash

declare -r JAVADIR='/usr/lib/jvm/jdk-21.0.2'
declare -r PRIORITY=1
declare -r BINDIR='/usr/bin'
find "$JAVADIR" -perm 755 -type f | while read FP
do
  FN=$(basename $FP)
  echo "update-alternatives --install /usr/bin/$FN $FN $FP $PRIORITY"
  update-alternatives --install /usr/bin/$FN $FN $FP $PRIORITY
done