Provides Alibaba's coding guidelines for PMD, IDEA and Eclipse.

Modern static analysis tool for verifying the correctness of code.

Static analysis of coding conventions and standards. (LGPL-2.1-or-later)

Catches common programming mistakes as compile-time errors.

Source code analysis for finding bad coding practices.

Eliminates NullPointerExceptions with low build-time overhead.

Static analysis of bytecode to find potential bugs. (LGPL-2.1-only)

Library for analyzing and transforming Java source code.

Static analyzer for SonarQube & SonarLint. (LGPL-3.0-only)

Identifies and prioritizes God Classes and Highly Coupled classes.

Error Prone extensions: extra bug checkers and a large battery of Refaster templates.