JMH IntelliJ integration

[lpetrovic05]

IntelliJ has a play button for JMH tests:

Unfortunately, when trying to run a JMH test this way, it will not run. This would be a useful feature to have.

[hendrikebbers]

Or at least have a pattern for a command line call to execute only 1 JMH test

[jjohannes]

The example in the description can be confusing. The button is there, because there is a main(...) method in ConsensusBenchmark so IntelliJ offers to run it as a Java application. If you look at other tests – for example LoggingBenchmark – there is no button.

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Is there any good way to run a single test right now with a Gradle command? As far as I can see, the Gradle plugin does not offer something for that out of the box. I could add a parameter so that you can do:

./gradlew :swirlds-logging:jmh -PjmhTests=LoggingBenchmark$executeSimpleLogWithMessageWithPlaceholder

Would that make sense?

Then there is an IntelliJ plugin: https://plugins.jetbrains.com/plugin/7529-jmh-java-microbenchmark-harness
I tried this, with one modification to the setup it seems to work well:

I can prepare a PR to:

1. ...allow running a single test from command line using -PjmhTests
2. ...using the IntelliJ plugin to run from IntelliJ

[jjohannes]

Please install the IntelliJ plugin and give this a try: #11865