Squid analyzer for Java.

This extension provides Java rules for the jQAssistant plugin.

Sonar Java :: Cobertura Plugin

Provides rules to reduce the environmental footprint of your Java programs

A sonar plugin deploying a rule against java 'var' usage

Customised Java Rules

This plugin brings core support to the Java language on Sonar.

FindBugs is a program that uses static analysis to look for bugs in Java code. It can detect a variety of common coding mistakes, including thread synchronization problems, misuse of API methods.

Checkstyle is a code analyser to help programmers write Java code that adheres to a coding standard.

PMD is a tool that looks for potential problems like possible bugs, dead code, suboptimal code, overcomplicated expressions or duplicate code.