Microservices with Java EE are ideally built as zero-dependency applications.

Thin WAR applications are deployed on modern enterprise containers that can be shipped in containers. This minimizes deployment time. Java EE deployment artifacts should only contain provided dependencies, if there is a reasonable need for adding third-party dependencies, they should be installed in the application server. Container technologies simplify this approach.

This also matches the idea of shared-nothing architectures. The team is responsible for the application-specific technology, in this case the application server installation including libraries. Infrastructure as code definitions such as Dockerfiles, enable the development team to accomplish this in effective ways.