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analyze Java bytecode for bug patterns, misuse, and likely defects

OSS scale score 289.4OSS health 100
About these scores

OSS scale score is an unbounded metric that log-compresses and weights Stars, Watchers, Forks, and Contributors. Discovery score is the current OSS scale score minus the score at discovery. Update pace is commits in the last 30 days, growth momentum is the OSS scale score difference within the recent observation window, and OSS health is a 0–100 rating based on available recency, Community Health, and release data.

Stars
3,949
Primary language
Java
License
LGPL-2.1
Repository last updated
Oct 6, 2026
On this page

Overview

SpotBugs is the community successor to FindBugs and performs static analysis on Java code to identify likely bugs. It can run standalone or integrate with Gradle, Maven, IDEs, and code-quality platforms.

Features and best fit

Based on official documentation; not hands-on tested · Content checked:

Key features

Detect bug patterns in compiled Java code

The README positions SpotBugs as the successor to FindBugs and a static analysis tool for finding bugs in Java code.

Sources: [2]

Integrate analysis with builds, IDEs, and quality platforms

Documented integrations include Ant, Maven, Gradle, Eclipse, SonarQube, IntelliJ IDEA, and VS Code.

Sources: [2]

Best fit

Fits CI quality gates that need defect analysis beyond code style

Because it targets bug patterns in compiled code rather than formatting conventions, it complements style-oriented checks in Java services and libraries.

Sources: [2]

Before adoption

Track JDK requirements and detector false-positive or false-negative fixes

Running SpotBugs requires JDK 11+, while a full build requires JDK 21. Version 4.10.4 fixes several detector false positives and false negatives involving notify calls, assertions, signed-byte comparisons, exposed representation, and unread fields.

Sources: [2][3]

Official sources

  1. [1]spotbugs/spotbugs — GitHub repository(2026-10-06)
  2. [2]SpotBugs — README(2026-10-06)
  3. [3]SpotBugs 4.10.4 release(2026-10-06)
Supplemental curator note

Because it analyzes compiled bytecode, SpotBugs complements style checking and fits CI quality gates. Running SpotBugs requires JDK 11+, while building the project requires JDK 21.

Try it in 3 steps

  1. 1

    Get the source

    git clone --depth 1 https://github.com/spotbugs/spotbugs.git
  2. 2

    Enter the repository

    cd spotbugs
  3. 3

    Check the official steps

    Continue with the commands in the README Installation, Quick Start, or Getting Started section.

    find . -maxdepth 1 -iname 'README*' -exec sed -n '1,220p' {} \; -quit
Check the official README

Growth

Growth trends · Last 30 days

3,949 Stars

Trend data is still being collected.

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Categories and tags

GitHub data

GitHub dataView detailed GitHub data

GitHub Topics

  • code-analysis
  • findbugs
  • hacktoberfest
  • linter
  • static-analysis
  • static-code-analysis
Stars
3,949
Forks
690
Watchers
3,949
Open issues
461
Contributors
220
Owner type
Organization
Primary language
Java
License
LGPL-2.1
Repository last updated
Oct 6, 2026
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