RFR: JDK-8322878: Including sealing information Class.toGenericString()

[Pavel Rappo]

On Wed, 3 Jan 2024 14:59:33 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

>> As recently discussed on core libs, sealed-ness information could be included in the Class.toGenericString() output, analagous to how "modifiers" that also correspond to JVM access flags are handled.
>> 
>> This is the initial spec, implementation, and test updated needed for that change. If there is consensus this is a reasonable direction, I'll create the CSR, etc.
>
> src/java.base/share/classes/java/lang/Class.java line 264:
> 
>> 262:     /**
>> 263:      * Returns a string describing this {@code Class}, including
>> 264:      * information about modifiers, {@linkplain #isSealed() sealing}, and type parameters.
> 
> If Class.toGenericString is a useful API point for describing the blessed order of modifiers in the JDK
> perhaps the existing classes that describe modifiers could/should cross reference this method.

Given potential lossiness of source modifiers presentation by java.lang.reflect, I don't think this method is a good host for describing the canonical modifier order. Mentioning? Probably. Describing? No.

Separately, but also related: while it does not seem impossible, this PR does not implement `non-sealed`.

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PR Review Comment: https://git.openjdk.org/jdk/pull/17239#discussion_r1440663061