Hi, all, The google-java-format is just a code formatter, which cannot apply some rules to code semantic. Only a formatter cannot help codes become better.
So we plan to enable the linter, checkstyle, which has already been integrated in the validation stage to let the codes developed by different contributors obey the same style ruleset. Currently the AvoidStarImport rule is activated and the following commits cannot use wildcard import like `import java.io.*` any more. This will not affect any release branches. All the existed violations have been fixed in [1]. Please rebase the master branch to make sure that the codes in your local branch can pass the style check. Someone may be disrupted by IDEA default style configuration, so you can reference the code style section of the latest contributor guide page[2] and find the solutions. If anyone has good code style rules in practice, welcome to contribute them to checkstyle.xml 😊 [1] https://github.com/apache/iotdb/pull/5622 [2] https://iotdb.apache.org/Development/ContributeGuide.html
