RFR: ClassicProblem_02_ProducerConsumerProblem - third try [v2]

[Michael Mirwaldt]

On Thu, 18 Nov 2021 22:54:45 GMT, Michael Mirwaldt <duke at openjdk.java.net> wrote:

>> jcstress-samples/src/main/java/org/openjdk/jcstress/samples/concurrency/classic/ClassicProblem_02_ProducerConsumerProblem.java line 65:
>> 
>>> 63:         public int produce() {
>>> 64:             try {
>>> 65:                 // produce item
>> 
>> What these comments are for? How do they relate to test?
>
> They are placeholders for code which was left out because it isn't needed for the test in JCStress. However, users of JCStress must not forget to add code there if they want to implement e.g. a queue with a buffer. The solutions in the sample are only the "bones" of the algorithms. The "muscles" are missing. (Excuse my strange metaphor here)

I have noticed just a moment ago that the solutions in the wikipedia article (https://en.wikipedia.org/wiki/Producer%E2%80%93consumer_problem) use undeclared functions to show readers which code was left out. I cannot use undeclared methods because of the compiler and empty methods are more confusing and useless unless they are overridden somewhere on purpose.

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PR: https://git.openjdk.java.net/jcstress/pull/104