RFR: 8321428: Deprecate for removal the package java.beans.beancontext

[Iris Clark]

On Mon, 1 Apr 2024 22:53:12 GMT, Larry Cable <duke at openjdk.org> wrote:

> the beancontext package was added (by me) in JDK 1.2 to provide JavaBeans(tm) with a containment and services hierarchy.
> 
> based upon concepts from OpenDoc, which was a popular component model at the time, the API pre-dated the addition of language features such as annotations, and the invention and adoption of programming design patterns such as "Inversion of Control"  and/or "Dependency Injection".
> 
> This API (package) has not evolved with either the language or current design trends, as such it is, at best, anachronistic, and is probably an anti-pattern that should be avoided.
> 
> This package is therefore deprecated **FOR REMOVAL IN AT FUTURE RELEASE**

Recommend java.beans.beancontext package.html be modified to include a deprecation note similar to the one present in java.applet package.html: 

> This package has been deprecated and may be removed in a future version of the Java Platform. There is no replacement. All of the classes and interfaces in this package have been terminally deprecated. Users are advised to migrate their applications to other technologies.

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PR Review: https://git.openjdk.org/jdk/pull/18569#pullrequestreview-1972627385