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.

Start with the stack from MountableFile.recursiveTar and MountableFile.transferTo, then inspect ImageFromDockerfile.resolve and the referenced DeploymentIntegrationTests.java line 104. Try to reproduce the container-start hang during file transfer; done means identifying and addressing the hang, with the deployment integration test still starting reliably.