RFR: JDK-8272945: Use snippets in java.compiler documentation

[Jonathan Gibbons]

On Fri, 3 Dec 2021 00:40:03 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

>> Please review a patch to use snippets in the `java.compiler` documentation, instead of a mix of raw HTML and/or `{@code ...}`.  The change is just about the presentation of the code fragments; there are no changes to the normative specifications for the module.
>> 
>> One of the examples went to extraordinary lengths to include the character sequence `*/` within the example. That example has been replaced by an external snippet in a separate source file, which does not have any restriction on the use of `*/`. However, it does require that the file be excluded from standard compilation, and that is done by setting `EXCLUDES`, once for the "interim" compiler, and once again for the "product" compiler.    Going forward, a better solution might be to modify the `SetupJavaCompilation` macro to ignore all directories whose name is not a valid Java identifier (or, if easier, contains a `-`, such as `doc-files` or `snippet-files`.)
>
> src/java.compiler/share/classes/javax/tools/snippet-files/JavaSourceFromString.java line 29:
> 
>> 27:         return code;
>> 28:     }
>> 29: }
> 
> Missing newline..?

Fixed

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PR: https://git.openjdk.java.net/jdk/pull/6686