RFR: 8311102: Write annotations in the classfile dumped by SA

[Ashutosh Mehra]

On Fri, 30 Jun 2023 14:32:03 GMT, Ashutosh Mehra <duke at openjdk.org> wrote:

> Please review this PR that enables ClassWriter to write annotations to the class file being dumped.
> 
> The fields annotations are stored in `Annotations::_fields_annotations` which is of type `Array<Array<u1>*>`. There is no class in SA that can represent it. I have added ArrayOfU1Array to correspond to the type `Array<Array<u1>*>` and it works. I believe there are better approaches but that would require a bit more refactoring of the classes representing Array types. I will leave that for future work for now.
> 
> Testing: `test/hotspot/jtreg/serviceability/sa` and `test/jdk/sun/tools/jhsdb`
> Tested it manually by dumping j.l.String class and comparing the annotations with the original class using javap.
> The test case mentioned in [JDK-8311101](https://bugs.openjdk.org/browse/JDK-8311101) would provide better coverage.

Looking for reviewers for this. TIA.

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PR Comment: https://git.openjdk.org/jdk/pull/14735#issuecomment-1628904428