Scala runner does not expand wildcards in classpath

[olhotak]

Compiler version

Scala code runner version 3.2.2 -- Copyright 2002-2023, LAMP/EPFL

Minimized code

cat << EOF > A.scala
object A {
  def main(args: Array[String]) = println("hello")
}
EOF
mkdir classes lib
scalac -d classes A.scala
cd classes
jar cf ../lib/lib.jar *
cd ..
scala -classpath 'lib/*.jar' A

Output

Ignoring spurious arguments: A
Welcome to Scala 3.2.2 (11.0.18, Java OpenJDK 64-Bit Server VM).
Type in expressions for evaluation. Or try :help.
                                                                                            
scala> 

Expectation

In Scala 2.13, the output is

hello

If the Scala 2.13 behaviour is not possible, I would at least expect a more informative error message. Was the runner thinking that lib/*.jar was the name of the class that was to be executed rather than an argument to -classpath? Or if it thought A was the class to be executed, the error should say that it couldn't find A on the classpath, rather than that A is a spurious argument.

[som-snytt]

There is a Scala 2 ticket about respecting jar classpath from the manifest. Also, scalac and REPL should both support these classpath behaviors uniformly.

(That was the ticket where Seth told me, If you're thinking of addressing this issue please talk to me first. It's like getting called into the principal's office.)

Anyway, my point is that all the scala tools should respect and exploit the Java conventions.