The generated snippets were not declared as an output to the spring-boot-actuator-autoconfigure test goal so when the test was pulled from the cache, it did not contain the generated-snippets directory. This directory is required as an input to the asciidoctor plugin. This also declares that directory as an input to the asciidoctor plugin.
Note: This adds the generated-snippets directory as an output to all the default-test goals.
Comment From: wilkinsona
Thanks very much, @runningcode.