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This looks like a bug: https://github.com/SOM-st/som-java/blob/master/src/som/compiler/SourcecodeCompiler.java#L64

It says:
$ ./som.sh -cp Smalltalk Examples/Hello/Hello.som
but should say:
$ ./som.sh -cp Smalltalk Examples/Hello.som

While solving the Advent of Code 2022 using SOM today, I encountered an issue where som-java would not successfully parse the symbol #-, giving the following error:

Error: ./ParseTest.som:4: unexpected symbol, expected: Identifier, but found: Minus

Since this is the only operator symbol that doesn't parse (among #+, #*, #/ and #%), maybe it is because of the fact that the minus symbol can be used in integers, and since symbol names can't start with an integer, the parser probably rejects that code entirely.

Here is a minimal example that triggers the error:

ParseTest = (
  run: args = (
    #- println.
  )
)

Using '-' asSymbol instead makes the error go away and successfully yields the #- symbol.

See charig/TruffleMATE@cb28ee4