<i18n dev> RFR: 8259522: Apply java.io.Serial annotations in java.desktop [v2]

[Sergey Bylokhov]

On Wed, 13 Jan 2021 06:10:53 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

> Why do we add serialVersionUID in some classes like DefaultMutableTreeNode.java but not in other swing classes?

Most Swing classes are marked by the specific "Warning" that "Same-version serialization only" is supported. (I think such a warning is missed in a few classes). So generally the serialVersionUID field is not needed in such classes, but if present this provides a small benefit -> this UID is not generated at runtime.

For example, the DefaultMutableTreeNode was updated by the JDK-5017904 fix, which was unrelated to serialization but was targeted for the performance issue.

> Also, if this change is for stricter compile-time checking, shouldn't we remove @SuppressWarnings("serial") check?

At some point, we probably can remove it but will need to fix all serialization warnings which were disabled.

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PR: https://git.openjdk.java.net/jdk/pull/2020