Spring Cloud Hoxton is trying to support both 2.2 and 2.3 simultaneously.

#19699 removed some deprecations which will cause problems.

So far the items I've found that do not have replacements are:

• org.springframework.boot.context.properties.ConfigurationBeanFactoryMetadata.
• org.springframework.boot.actuate.health.CompositeHealthIndicator
• org.springframework.boot.actuate.health.HealthAggregator

It was a smaller list than I initially feared. I'll double-check that those are all of them.