Travis openjdk8 installation failing

[pmeister]

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Installing Java 14 fails with "travis_setup_java: command not found"

Hi, I help maintain the Elasticsearch Learning to Rank Plugin. As part of this Pull Request, we are upgrading to Elasticsearch 7.7. Part of this Elasticsearch now requires Java 14, so we updated our config to oraclejdk14. It seemed to work up until tonight when we were receiving the error when the install Java runs travis_fold:start:install_jdk e[0Ke[33;1mInstalling oraclejdk14e[0m travis_setup_java: command not found travis_fold:end:install_jdk Subsequent java -version returns: $ java -Xmx32…