`?` directory in Ubuntu 20.04.6 LTS with static build

[nabato]

bbin 0.2.0 creates a directory with a singe letter name ? with subdirectories .clojure, .deps.clj, .gitlibs, .local and installs bbins in there, which makes bbin and installed bbins unusable. The path to an installed bbin looks like $HOME/?/.local/bin/installed-bbin-name.

Calling (System/getProperty "user.home") returns correct name not a ?.

Installing bbin by means of brew or as a standalone executbale makes no difference.

P.S. Appreciate all of your work.

[borkdude]

What is the value of your XDG_*_HOME environment variables, if you have them set?

[nabato]

XDG_HOME

I don't have one.

[borkdude]

I edited the question, list any environment variable starting with XDG

[nabato]

I edited the question, list any environment variable starting with XDG

printenv | grep xdg:

XDG_CONFIG_DIRS=/etc/xdg/xdg-ubuntu:/etc/xdg

[borkdude]

I don't see any mention of XDG_CONFIG_DIRS in the code. According to the spec they should be used (in order) in addition to XDG_CONFIG_HOME. Still I'd be curious where the ? comes from.

cc @rads

[akutschera]

I have a system with the same behaviour. On this system the output of bb -e '(print (System/getProperty "user.home"))' returns ? Trying the same in a clj repl prints my home directory so I assume it's happening here (in fact, if I change that code to set the property to the desired directory, bbin works as expected). I found a JDK bug that seems to suggest that there is an issue on systems with LDAP authentication, even though on the system where I re-create the behaviour there are only 64-bit libs installed (and I use LDAP authentication there).

[borkdude]

Perhaps this is an issue with GraalVM?

You can repro this as follows:

Repro.java:

public class Repro {
    public static void main(String [] args) {
        System.out.println(System.getProperty("user.dir"));
    }
}

javac Repro.java
java Repro # test if it works
$GRAALVM_HOME/bin/native-image Repro --no-fallback
./repro # test if it works in native-image

[borkdude]

If it turns out to be a GraalVM issue, please file an issue on their Github.

[akutschera]

I guess it is not a GraalVM issue. I tried the program with "user.dir" and "user.home". Both are displayed. I tried it with a GraalVM JDK 21 and JDK 17. I compiled the program with Java 17 and Java 8 (sic!). Everytime my home directory was printed.

[borkdude]

@akutschera Did you try it inside of a native-image rather than just a JDK? This wasn't clear from your answer.

[akutschera]

Sorry for the misunderstanding. I tried to follow your suggestions. Here's what I did: I created a file Repro.java like you suggested. I added the following line System.out.println(System.getProperty("user.home")); I compiled the file with both JDK8 and JDK17 For each class file I created a GraalVM native image with both a GraalVM 17 and 21 with $GRAALVM_HOME/bin/native-image Repro --no-fallback So I ended up with 2 class files and 4 native images. Each printed out my current and my home directory as expected.

[borkdude]

Which GraalVM did you use, the CE version or Oracle GraalVM?

[borkdude]

I have another repro for you which is closer to how bb (SCI) works:

public class Repro {
    public static void main(String [] args) throws NoSuchMethodException, IllegalAccessException, java.lang.reflect.InvocationTargetException {
        var clazz = System.class;
        var meth = clazz.getMethod("getProperty", String.class);
        System.out.println(meth.invoke(clazz, "user.dir"));
    }
}

Can you also try that one?

[akutschera]

I downloaded the GraalVMs from https://www.graalvm.org/downloads I downloaded both the Java 17 and the Java 21 version. I will have to try the new Repro later.

[akutschera]

Now, that's a bit embarassing. I found a solution/workaround for this. All I tried all the time was the static build of babashka. If I use the non-static build, everything is fine. That one can talk to sssd and get the home directory from the LDAP server.

[borkdude]

Btw, my repro above contains a mistake and should have user.home, not user.dir.

[borkdude]

I just tried the above on a Linux x64 Ubuntu 20.04 in WSL and both the static version and non-static version return the right value for user.home for me. I also tried it in a Docker image:

FROM ubuntu:20.04

RUN apt-get update && apt-get install curl -y
RUN curl -sLO https://raw.githubusercontent.com/babashka/babashka/master/install
RUN chmod +x install
RUN ./install --dir /tmp
RUN /tmp/bb -e "(System/getProperty \"user.home\")"

 /tmp/bb -e '(System/getProperty "user.home")'
"/root"