RFR: 8310310: Migrate CreateSymbols tool in make/langtools to Classfile API [v2]

[Jan Lahoda]

On Tue, 8 Apr 2025 20:33:33 GMT, Chen Liang <liach at openjdk.org> wrote:

>> Migrates the CreateSymbols tool to use the ClassFile API, away from com.sun.tools.classfile.
>> 
>> Need the boot jdk `--with-boot-jdk=` to be 24; thus a draft for now; but this is open to reviews.
>> 
>> Together with #24206, the old com.sun.tools.classfile can be removed from the JDK.
>
> Chen Liang has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains six additional commits since the last revision:
> 
>  - Merge branch 'master' of https://github.com/openjdk/jdk into feature/migrate-create-symbols
>  - Merge branch 'master' of https://github.com/openjdk/jdk into feature/migrate-create-symbols
>  - Other references to remove
>  - Merge branch 'master' of https://github.com/openjdk/jdk into feature/migrate-create-symbols
>  - FieldDescription.constantValue uses Integer for byte and short
>  - 8310310: Migrate CreateSymbols tool in make/langtools to Classfile API

I skimmed through the `CreateSymbols` changes, used `test/langtools/tools/javac/sym/PrintCTSymContent.java` to print ct.sym content before and after, and let the tool that generates the `.sym.txt` to run for JDK 24. All seems fine to me. Thanks!

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Marked as reviewed by jlahoda (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/24212#pullrequestreview-2753708018