Please review a medium size update that is the last in the series of recent updates to refactor and simplify builders and writers.
Having cleared away some of the earlier obfuscation, it becomes clear that all subtypes of `HtmlDocletWriter` generate pages for the overall documentation, and so a new abstract method `buildPage` is introduced to make that more obvious. This resulted in renaming some existing `build` methods and/or removing some static `generate` methods, though some of the more complex ones still remain. In addition, all writers are now generally created by the `WriterFactory` class, providing an extension point should it ever be needed to subtype these classes. The methods on `WriterFactory` return the appropriate supertype (`HtmlDocletWriter` or `AbstractMemberWriter`) thus enforcing the use of the standard abstract methods that are now available. There is also some cleanup to some of the member writers, including introducing more abstract methods to define common behavior, simplifying some method signatures, removing unused code, and providing documentation comments. ------------- Commit messages: - Address review feedback - JDK-8313349: Introduce `abstract void HtmlDocletWriter.buildPage()` Changes: https://git.openjdk.org/jdk/pull/15114/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15114&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8313349 Stats: 1249 lines in 46 files changed: 420 ins; 499 del; 330 mod Patch: https://git.openjdk.org/jdk/pull/15114.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/15114/head:pull/15114 PR: https://git.openjdk.org/jdk/pull/15114
