This issue depends on https://issues.jboss.org/browse/CRW-21.

Approximate user story for testing RHEL8 Java stack:

1. Create a new workspace from the RHEL8 Java stack with a sample project.
2. Check that the workspace is ready to use and the project is completely initialized.
3. Check the JDT.LS is initialized
4. Start all existed in workspace commands and check results
5. Check the next java language server features:

• autocomplete
• quick fix
• find usages