[RANGER-2167] Upgrade to Apache parent pom version 20

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.0.0, 1.2.0
• Component/s: admin, plugins
• Assignee: Colm O hEigeartaigh
• Reporter: Colm O hEigeartaigh
• Created: 27/Jul/18 15:02
• Updated: 05/Aug/19 20:36
• Resolved: 15/Aug/18 16:30

Description

This task is to upgrade to the Apache parent pom version 20. This necessitates a PMD upgrade and quite a few fixes are required as a result. One notable change is to switch the KMS Keystore implementation to use ConcurrentHashMap instead of HashTable.

Issue Links

• links to: Review Request