RFR: JDK-8276892: Provide a way to emulate exceptional situations in FileManager when using JavadocTester [v3]

[Jonathan Gibbons]

On Mon, 13 Dec 2021 16:46:34 GMT, Pavel Rappo <prappo at openjdk.org> wrote:

>> Jonathan Gibbons has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   update to handle methods on JavaFileManager, such as getFileForInput
>>   
>>   Overall, to better handle the ability to throw checked exceptions,
>>   the functionality of the builder is changed and now limited to providing
>>   functions that can throw user-provided exceptions, instead of fully
>>   replacing the underlying delegate method.
>
> test/langtools/jdk/javadoc/lib/javadoc/tester/TestJavaFileManagerBuilder.java line 100:
> 
>> 98:         }
>> 99: 
>> 100:         var prev = fileManagerHandlers.put(method, handler);
> 
> Use putIfAbsent instead of put; otherwise this whole "handle" method is not "failure-atomic".

Done.

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PR: https://git.openjdk.java.net/jdk/pull/6404