Update to Dropwizard 4.0

[lfoppiano]

I've started looking into upgrading from dropwizard 1.x to 4.x. It's quite some work but doable. I've got already a working version of grobid-quantities. 😄

I've started working on the branch features/update-dropwizard.

There are two-three main changes to be done:

• [ ] update the GrobidServiceConfiguration to cover all the elements from the YAML (it seems more strict than dropwizard 1
• [ ] (probably) get rid of the GrobidProperties
• Move the output bytecode from jdk 1.8 to jdk 1.11
• Fix HealthCheck
• [ ] Fix tests to run with Junit 5 (org.junit.internal.runners.rules.ValidationError: The @ClassRule 'APP' must implement TestRule.)

I will update this thread as I progress

[kermitt2]

I think the main problem for this upgrade is that the JDK 1.8 compatibility is lost.
In my tests, I had some difficulties replacing dropwizard-guicier by the more modern dropwizard-guicey for the guice stuff support in the new Dropwizard, I did not manage to bind the classes to the module, but I see that you made it in #1032 !

[lfoppiano]

#1032 should be working fine except for the tests that are running with the legacy engine

[kermitt2]

Nice! What about adding it to the 0.8.0 release and move to Java 11 as minimal requirement?

[lfoppiano]

@kermitt2 I think it's time to let JDK 1.8 go 😄