Container start hangs intermittently during file transfer

As discussed with @bsideup, I've seen a situation where starting a container hangs while transferring a file into it. Here's the stack of the hang:

"Test worker" #19 prio=5 os_prio=31 tid=0x00007f8ad098d000 nid=0x9d03 in Object.wait() [0x000070000ad74000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
	at java.lang.Object.wait(Native Method)
	at java.io.PipedInputStream.awaitSpace(PipedInputStream.java:273)
	at java.io.PipedInputStream.receive(PipedInputStream.java:231)
	- locked <0x00000007ae57cd20> (a java.io.PipedInputStream)
	at java.io.PipedOutputStream.write(PipedOutputStream.java:149)
	at java.util.zip.DeflaterOutputStream.deflate(DeflaterOutputStream.java:253)
	at java.util.zip.DeflaterOutputStream.write(DeflaterOutputStream.java:211)
	at java.util.zip.GZIPOutputStream.write(GZIPOutputStream.java:145)
	- locked <0x00000007ae57f528> (a java.util.zip.GZIPOutputStream)
	at org.apache.commons.compress.utils.CountingOutputStream.write(CountingOutputStream.java:48)
	at org.apache.commons.compress.utils.FixedLengthBlockOutputStream$BufferAtATimeOutputChannel.write(FixedLengthBlockOutputStream.java:244)
	at org.apache.commons.compress.utils.FixedLengthBlockOutputStream.writeBlock(FixedLengthBlockOutputStream.java:92)
	at org.apache.commons.compress.utils.FixedLengthBlockOutputStream.maybeFlush(FixedLengthBlockOutputStream.java:86)
	at org.apache.commons.compress.utils.FixedLengthBlockOutputStream.write(FixedLengthBlockOutputStream.java:122)
	at org.apache.commons.compress.archivers.tar.TarArchiveOutputStream.write(TarArchiveOutputStream.java:454)
	at java.nio.file.Files.copy(Files.java:2909)
	at java.nio.file.Files.copy(Files.java:3069)
	at org.testcontainers.utility.MountableFile.recursiveTar(MountableFile.java:326)
	at org.testcontainers.utility.MountableFile.transferTo(MountableFile.java:300)
	at org.testcontainers.images.builder.ImageFromDockerfile.resolve(ImageFromDockerfile.java:130)
	at org.testcontainers.images.builder.ImageFromDockerfile.resolve(ImageFromDockerfile.java:37)
	at org.testcontainers.utility.LazyFuture.getResolvedValue(LazyFuture.java:20)
	- locked <0x00000007ae578a90> (a java.util.concurrent.atomic.AtomicReference)
	at org.testcontainers.utility.LazyFuture.get(LazyFuture.java:27)
	at org.testcontainers.shaded.com.google.common.util.concurrent.Futures$3.get(Futures.java:1332)
	at org.testcontainers.images.RemoteDockerImage.getImageName(RemoteDockerImage.java:97)
	at org.testcontainers.images.RemoteDockerImage.resolve(RemoteDockerImage.java:56)
	at org.testcontainers.images.RemoteDockerImage.resolve(RemoteDockerImage.java:26)
	at org.testcontainers.utility.LazyFuture.getResolvedValue(LazyFuture.java:20)
	- locked <0x00000007ae57c750> (a java.util.concurrent.atomic.AtomicReference)
	at org.testcontainers.utility.LazyFuture.get(LazyFuture.java:27)
	at org.testcontainers.containers.GenericContainer.getDockerImageName(GenericContainer.java:1277)
	at org.testcontainers.containers.GenericContainer.logger(GenericContainer.java:613)
	at org.testcontainers.containers.GenericContainer.doStart(GenericContainer.java:320)
	at org.testcontainers.containers.GenericContainer.start(GenericContainer.java:311)
	at sample.DeploymentIntegrationTests$DeployedApplication.test(DeploymentIntegrationTests.java:104)
	…

This is the test that's starting the container. The hang occurred using Testcontainers 1.14.3. I've said that it's intermittent in the issue title, but that's something of an exaggeration. I've only seen this once. Unfortunately, that means I'm not sure what caused it or how to reproduce it. I'll update this issue if I see it again.

Commencez par la stack de MountableFile.recursiveTar et MountableFile.transferTo, puis examinez ImageFromDockerfile.resolve ainsi que la ligne 104 référencée de DeploymentIntegrationTests.java. Essayez de reproduire le blocage au démarrage du conteneur pendant le transfert de fichiers ; le travail est considéré comme terminé lorsque le blocage est identifié et corrigé, et que le test d’intégration du déploiement démarre toujours de manière fiable.