Modernizer vs FF4J

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Modernizer		FF4J
	Project
5	Mentions	4
359	Stars	1,347
-	Growth	0.5%
8.2	Activity	7.6
25 days ago	Latest Commit	1 day ago
Java	Language	Java
Apache License 2.0	License	Apache License 2.0

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

Modernizer

Posts with mentions or reviews of Modernizer. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-08-25.

Detect uses of legacy Java or library APIs
1 project | news.ycombinator.com | 26 Aug 2021

1 project | /r/coding | 25 Aug 2021

4 projects | /r/java | 25 Aug 2021
How to make IntelliJ tell you about updated standard libs with the same purpose?
3 projects | /r/java | 19 Jan 2021

This is another option: https://github.com/gaul/modernizer-maven-plugin

FF4J

Posts with mentions or reviews of FF4J. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-06-07.

FF4J – Feature Flags for Java
6 projects | news.ycombinator.com | 7 Jun 2023

Yikes:
> the behavior of a feature can be enslaved with your custom implementation
https://github.com/ff4j/ff4j/wiki/Flipping-Strategies
We create an open-source feautre flag sytem to help release faster and safe
4 projects | /r/devops | 20 Dec 2022

What are some alternatives?

When comparing Modernizer and FF4J you can also consider the following projects:

LightAdmin - [PoC] Pluggable CRUD UI library for Java web applications

Togglz - Feature Flags for the Java platform

Maven Wrapper - The easiest way to integrate Maven into your project!

javaslang-circuitbreaker - Resilience4j is a fault tolerance library designed for Java8 and functional programming

Design Patterns - Design patterns implemented in Java

Polyglot for Maven - Support alternative markup for Apache Maven POM files

Modern Java - A Guide to Java 8 - Modern Java - A Guide to Java 8

J2ObjC - A Java to iOS Objective-C translation tool and runtime.

sitemapgen4j - SitemapGen4j is a library to generate XML sitemaps in Java.

restrict-imports-enforcer-rule - Gradle plugin & Maven Enforcer rule that restricts usage of unwanted imports in Java, Kotlin and Groovy source files.

failsafe - Fault tolerance and resilience patterns for the JVM