[lworld] Integrated: 8340409: [lworld] Simple serialization and deserialization of core migrated classes

[Roger Riggs]

On Wed, 18 Sep 2024 20:31:25 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

> Serialization and deerialization of value classes. 
> For java.base value classes migrated from identity classes:
>   - Must be annotated with jdk.internal.MigratedValueClass (in tests too)
>   - Must have a constructor or static factory method:
>     - annotated with jdk.internal.value.DeserializeConstrucctor
>     - constructor parameters must match order and types of serializable fields of the class
>   - Value class must not have superclass with fields; only Object or abstract w/o fields
>   - Uses same technique as for Records to extract and concat values from stream to invoke constructor
>   - Migrated value classes are serialized using the same format/fields as the identity class
> 
> Non-migrated value classes throw InvalidClassException
> 
> Along the way, refactored code to break out different modes of deserialization: full custom deserialization with custom data, default deserialization only, externalizable, no local class, record, and then added mode to deserialize a value class.
> 
> Updates to value class tests and added a combo test to check many combinations of value and identity classes with different parameters.

This pull request has now been integrated.

Changeset: e02c628f
Author:    Roger Riggs <rriggs at openjdk.org>
URL:       https://git.openjdk.org/valhalla/commit/e02c628f867d564bd3ddf644ec2fcc465c75b8f3
Stats:     3174 lines in 21 files changed: 2588 ins; 423 del; 163 mod

8340409: [lworld] Simple serialization and deserialization of core migrated classes

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PR: https://git.openjdk.org/valhalla/pull/1248