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Closes#1403 from yanghua/KYUUBI-1384.
Closes#1384
e4e12088 [yanghua] address review suggestion
17a4cb86 [yanghua] reformat all the java files based on the offical google java code style
10a2ca04 [yanghua] [KYUUBI #1384] Introduce Java code style and formatter
Authored-by: yanghua <yanghua1127@gmail.com>
Signed-off-by: Cheng Pan <chengpan@apache.org>
2baabf46ca