Reformats Java source code to comply with Google Java Style

Current versions

google-java-format requires the following formula to be installed:
maven 3.5.3 Java-based project management

Recent formula history

ilovezfs Audit fixes for descriptions (#20013)
David Pursehouse google-java-format 1.5
ilovezfs google-java-format: fix checksum
ilovezfs google-java-format: remove deprecated ENV.java_cache
ilovezfs google-java-format 1.4

Formula code at GitHub