Github user ameyjadiye commented on the issue:
https://github.com/apache/commons-lang/pull/268
As per Travis-ci documentation doesnt seems they support oraclejdk9
https://docs.travis-ci.com/user/languages/java/
>The Travis CI environment provides Oracle JDK 7 (default), Oracle JDK 8,
OpenJDK 6, OpenJDK 7, Gradle 2.0, Maven 3.2 and Ant 1.8, and has sensible
defaults for projects that use Gradle, Maven or Ant.
Thats why I added Docker Image for ibmjdk8 to Commons text
https://github.com/apache/commons-text/pull/45
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