RFR: 8311172: Classfile.PREVIEW_MINOR_VERSION doesn't match that read from class files

[Adam Sotona]

On Fri, 30 Jun 2023 13:10:55 GMT, Chen Liang <liach at openjdk.org> wrote:

> `Classfile.PREVIEW_MINOR_VERSION`, currently -1, is correct when passed to `ClassBuilder::withVersion`, but is incorrect when compared to `ClassModel::minorVersion`, which only sets the bits of 2 lowest bytes to 1 (65536). Discovered when trying to replace an asserted preview minor version with this constant in `PreviewHiddenClass` test porting in #13009, which is currently failing.
> 
> Requesting a review from @asotona.

It looks good, thanks for the fix.

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Marked as reviewed by asotona (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/14731#pullrequestreview-1532114201