RFR: 7904122: Compilation of jasm files leads to class file version warning

[Christian Stein]

On Fri, 12 Dec 2025 07:39:47 GMT, Jaikiran Pai <jpai at openjdk.org> wrote:

> Can I please get a review of this change which fixes the issue noted in https://bugs.openjdk.org/browse/CODETOOLS-7904122?
> 
> The commit here adds `-cv 52.0` as an option when launching the `jasm` tool for compiling `jasm` files through jtreg's `@compile` action. This class file version will be used as the default version if the jasm file doesn't explicitly specify a class file version in it. The use of "-cv" option prevents the warning from being issued.
> 
> An existing self test has been updated to verify this change.

test/jasm/Jasm.gmk line 45:

> 43: 	$(GREP) '\---jasm:' $(@:%.ok=%)/work/JasmUsageTest.jtr > /dev/null
> 44: 	# verify that the warning wasn't printed
> 45: 	$(GREP) 'Warning: Class file version not specified in file or by -cv parameter' \

Would it make sense to (also) look for any other "Warning: ..." messages? 🤔

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PR Review Comment: https://git.openjdk.org/jtreg/pull/303#discussion_r2613477749