Checkstyle is a tool that ensures adherence to a code standard or a set of best practices.
The latest release version can be found at GitHub releases or at Maven repo.
Each-commit builds of maven artifacts can be found at Maven Snapshot repository.
Documentation is available in HTML format, see https://checkstyle.org/checks.html .
$ cat config.xml <?xml version="1.0"?> <!DOCTYPE module PUBLIC "-//Puppy Crawl//DTD Check Configuration 1.3//EN" "https://checkstyle.org/dtds/configuration_1_3.dtd"> <module name="Checker"> <module name="TreeWalker"> <module name="FallThrough"/> </module> </module> $ cat Test.java class Test { public void foo() { int i = 0; while (i >= 0) { switch (i) { case 1: case 2: i++; case 3: // violation 'fall from previous branch of the switch' i++; } } } } $ java -jar checkstyle-10.18.1-all.jar -c config.xml Test.java Starting audit... [ERROR] Test.java:9:9: Fall through from previous branch of switch statement [FallThrough] Audit done. Checkstyle ends with 1 errors.
Thanks for your interest in contributing to CheckStyle! Please see the Contribution Guidelines for information on how to contribute to the project. This includes creating issues, submitting pull requests, and setting up your development environment.
Please see the CheckStyle Documentation for information on how to build the project.
Take a look at our javadoc to see our API documentation.
Checkstyle is an open-source project that is developed and maintained by volunteers. If you find Checkstyle useful, please consider sponsoring the project. Your support helps us to maintain and improve Checkstyle.
Checkstyle is licensed under the GNU LGPL v2.1 License. Checkstyle uses libraries:
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