Comment 4 for bug 2032571

Basic Hello world test:
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root@mantic:~# apt install openjdk-21-jre-headless
....
root@mantic:~# cat << EOF > Test.java
public class Test {
    public static void main(String[] args){
        System.out.println("Hello world");
    }
}
EOF
java Test.java
Hello world

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