* GH-666: Single global embedded Kafka with JUnit 5
Fixes https://github.com/spring-projects/spring-kafka/issues/666
* Introduce a `GlobalEmbeddedKafkaTestExecutionListener` which is registered
by the service loader from JUnit Platform
* Make its activation conditional based on the `spring.kafka.global.embedded.enabled`
system property
* Expose some other configuration properties for the target global `EmbeddedKafkaBroker`
* Verify its functionality via manual `Launcher.execute()`
* Add more `@DirtiesContext` to some tests in the `spring-kafka-test` which don't close
their embedded brokers on the exit
* * Print local launcher summary into SOUT for tracing the nested problems
* * Fix prefix for `file:` resource in the test
* * Make `junit-platform-launcher` as provided dep -
this is part of JUnit platform the test plan is going to be run
* Add missed new line in the end of `junit-platform.properties`
* Rethrow an exception from the local launcher in the `GlobalEmbeddedKafkaTestExecutionListenerTests`
to fail if its suite test classes have failed.
* * Fix JavaDocs for `GlobalEmbeddedKafkaTestExecutionListener` constants
* Move system properties clean up in the `GlobalEmbeddedKafkaTestExecutionListenerTests` into `@AfterAll`
* Add docs for this new feature
* Add `sample-05` to demonstrate global embedded Kafka in action via Maven configuration
* * Mention `sample-05` in the common `README.adoc` for samples
* * Fix language in the `testing.adoc`
* Add new lines into new files
* Add `spring.kafka.consumer.auto-offset-reset=earliest` to make a consumer to start from the beginning of the partition:
fixes a race condition when publishing happens before consumer is started
* Make `mvnw` as an executable
* Add `spring.embedded.kafka.brokers.property` explanation into docs
* * Fix language in docs
Co-authored-by: Gary Russell <grussell@vmware.com>
* * Make `Sample05Application2Tests` passing
* Remove `deliberately failing` sentence from the JavaDoc an README
* Clean up unused imports
Co-authored-by: Gary Russell <grussell@vmware.com>
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