GenericContainer#isHealthy throws NPE if the healthcheck is not set

[pivovarit]

Looks like health state is no longer part of the docker inspect response (api v1.40).

Looks like docker-java is mistakenly returning it in the response so we can't rely on that:
https://github.com/docker-java/docker-java/blob/066f268fa4f88687a9e7a41ca5eeaa85d63d8455/docker-java-api/src/main/java/com/github/dockerjava/api/command/InspectContainerResponse.java#L336-L340

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Reproducer: #2204

[bsideup]

As replied in docker-java/docker-java#1299, health is there, but only if the healthcheck is set.

But there is indeed an NPE if it is not

[pivovarit]

health is there, but only if the healthcheck is set.

Is it documented anywhere?

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. If you believe this is a mistake, please reply to this comment to keep it open. If there isn't one already, a PR to fix or at least reproduce the problem in a test case will always help us get back on track to tackle this.

[bedla]

this might be close because of #2206 implemented check.