RFR: 8294972: Convert jdk.jlink internal plugins to use the Classfile API [v4]

[Mandy Chung]

On Tue, 14 Mar 2023 15:22:04 GMT, Adam Sotona <asotona at openjdk.org> wrote:

>> src/jdk.jlink/share/classes/jdk/tools/jlink/internal/plugins/StripJavaDebugAttributesPlugin.java line 62:
>> 
>>> 60:                         // XXX. Do we have debug info? Is Asm ready for module-info?
>>> 61:                     } else {
>>> 62:                         byte[] content = newClassReader(path, resource, Classfile.Option.processDebug(false))
>> 
>> ASM `ClassReader.SKIP_DEBUG` flag indicates to skip  the SourceFile, SourceDebugExtension, LocalVariableTable, LocalVariableTypeTable, LineNumberTable and MethodParameters attributes.
>> 
>> `Classfile.Option.processDebug(false)` only skips LocalVariableTable, LocalVariableTypeTable, CHARACTER_RANGE_TABLE attributes.   To implement the same behavior as `SKIP_DEBUG`, it needs `Classfile.Option.processLineNumbers(false)` and skipping other attributes.
>
> Right, I'll fix it, thanks.

Looks like `LineNumberTable` is not stripped even with `Option.processLineNumbers(false)`.

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PR: https://git.openjdk.org/jdk/pull/12944