Kafka container not waiting for full startup

[AvaPL]

Minimal test to reproduce the issue:

import com.dimafeng.testcontainers.{ForAllTestContainer, KafkaContainer}
import org.scalatest.flatspec.AnyFlatSpec

class KafkaExampleTest extends AnyFlatSpec with ForAllTestContainer {
  override def container: KafkaContainer = KafkaContainer()

  "Kafka container" should "be started" in {
    container.bootstrapServers
  }
}

This code throws

java.lang.IllegalStateException: You should start Kafka container first
	at org.testcontainers.containers.KafkaContainer.getBootstrapServers(KafkaContainer.java:89)
	at com.dimafeng.testcontainers.KafkaContainer.bootstrapServers(KafkaContainer.scala:25)
	at links.kafka.KafkaExampleTest.$anonfun$new$1(KafkaExampleTest.scala:10)

It happens only with ForAllTestContainer trait. When using new TestContainerForAll from experimental API it works as expected. Tested on Ubuntu 18.04 and Docker Toolbox for Windows using testcontainsers-scala v0.38.4, same results.

[markarasev]

Had a similar issue with Postgresql as linked by Mithunatri.
In my case changing override def container = PostgreSQLContainer() by an override val solved the problem (actually the examples use a val but IntelliJ overrides with a def by default).