[parquet-mr] Add Java 11 to Travis

[asfimport]

Reporter: Fokko Driesprong / @Fokko
Assignee: Fokko Driesprong / @Fokko

Related issues:

• Support Java 11 - top-level JIRA (is a child of)
• [parquet-format] Add Java 11 to Travis (duplicates)
• [Java] Update Scala for JDK 11 compatibility (depends upon)
• [Java] javax annotations dependency missing for Java 11 (depends upon)

PRs and other links:

• GitHub Pull Request #596

_{Note: This issue was originally created as PARQUET-1499. Please see the migration documentation for further details.}