SonarSource Rules
  • Products

    In-IDE

    Code Quality and Security in your IDE with SonarQube Ide

    IDE extension that lets you fix coding issues before they exist!

    Discover SonarQube for IDE

    SaaS

    Code Quality and Security in the cloud with SonarQube Cloud

    Setup is effortless and analysis is automatic for most languages

    Discover SonarQube Cloud

    Self-Hosted

    Code Quality and Security Self-Hosted with SonarQube Server

    Fast, accurate analysis; enterprise scalability

    Discover SonarQube Server
  • SecretsSecrets
  • ABAPABAP
  • AnsibleAnsible
  • ApexApex
  • AzureResourceManagerAzureResourceManager
  • CC
  • C#C#
  • C++C++
  • CloudFormationCloudFormation
  • COBOLCOBOL
  • CSSCSS
  • DartDart
  • DockerDocker
  • FlexFlex
  • GitHub ActionsGitHub Actions
  • GoGo
  • HTMLHTML
  • JavaJava
  • JavaScriptJavaScript
  • JSONJSON
  • JCLJCL
  • KotlinKotlin
  • KubernetesKubernetes
  • Objective CObjective C
  • PHPPHP
  • PL/IPL/I
  • PL/SQLPL/SQL
  • PythonPython
  • RPGRPG
  • RubyRuby
  • RustRust
  • ScalaScala
  • ShellShell
  • SwiftSwift
  • TerraformTerraform
  • TextText
  • TypeScriptTypeScript
  • T-SQLT-SQL
  • VB.NETVB.NET
  • VB6VB6
  • XMLXML
  • YAMLYAML
Java

Java static code analysis

Unique rules to find Bugs, Vulnerabilities, Security Hotspots, and Code Smells in your JAVA code

  • All rules 733
  • Vulnerability60
  • Bug175
  • Security Hotspot40
  • Code Smell458

  • Quick Fix 65
Filtered: 2 rules found
java9
    Impact
      Clean code attribute
        1. Deprecated annotations should include explanations

           Code Smell
        2. Java features should be preferred to Guava

           Code Smell

        Java features should be preferred to Guava

        consistency - conventional
        maintainability
        Code Smell
        • java9
        • java8

        Why is this an issue?

        Some Guava features were really useful for Java 7 application because Guava was bringing APIs missing in the JDK. Java 8 fixed some of these limitations. When migrating an application to Java 8 or even when starting a new one, it’s recommended to prefer Java 8 APIs over Guava ones to ease its maintenance: developers don’t need to learn how to use two APIs and can stick to the standard one.

        Java 9 brought even more useful methods to the standard Java library and if Java version is equal to or higher than 9, these standard methods should be used.

        This rule raises an issue when the following Guava APIs are used:

        Guava API Java 8 API

        com.google.common.io.BaseEncoding#base64()

        java.util.Base64

        com.google.common.io.BaseEncoding#base64Url()

        java.util.Base64

        com.google.common.base.Joiner.on()

        java.lang.String#join() or java.util.stream.Collectors#joining()

        com.google.common.base.Optional#of()

        java.util.Optional#of()

        com.google.common.base.Optional#absent()

        java.util.Optional#empty()

        com.google.common.base.Optional#fromNullable()

        java.util.Optional#ofNullable()

        com.google.common.base.Optional

        java.util.Optional

        com.google.common.base.Predicate

        java.util.function.Predicate

        com.google.common.base.Function

        java.util.function.Function

        com.google.common.base.Supplier

        java.util.function.Supplier

        com.google.common.io.Files.createTempDir

        java.nio.file.Files.createTempDirectory

        Guava API Java 9 API

        com.google.common.collect.ImmutableSet#of()

        java.util.Set#of()

        com.google.common.collect.ImmutableList#of()

        java.util.List#of()

        com.google.common.collect.ImmutableMap#of()

        java.util.Map#of() or java.util.Map#ofEntries()

          Available In:
        • SonarQube IdeCatch issues on the fly,
          in your IDE
        • SonarQube CloudDetect issues in your GitHub, Azure DevOps Services, Bitbucket Cloud, GitLab repositories
        • SonarQube Community BuildAnalyze code in your
          on-premise CI
          Available Since
          9.1
        • SonarQube ServerAnalyze code in your
          on-premise CI
          Developer Edition
          Available Since
          9.1

        © 2008-2025 SonarSource SA. All rights reserved.

        Privacy Policy | Cookie Policy | Terms of Use