Some more build and docs cleanup after baselining to JDK8

Description

A follow up on : some comments and build specifics can now be cleaned up.

Environment

None

Status

Assignee

Sanne Grinovero

Reporter

Sanne Grinovero

Labels

None

Worked in

None

Feedback Requested

None

Feedback Requested By

None

backPortable

None

Community Help Wanted

None

Suitable for new contributors

None

Requires Release Note

None

backportDecision

None

backportReEvaluate

None

Fix versions

Priority

Minor
Configure