Functional Java vs protonpack

Functional Java

Backport of Java 8's lambda expressions to Java 7, 6 and 5 (by luontola)

Functional programming

Source Code

Suggest alternative

Edit details

protonpack

Stream utilities for Java 8 (by poetix)

Functional programming

Source Code

Suggest alternative

Edit details

Our great sponsors

WorkOS - The modern identity platform for B2B SaaS

InfluxDB - Power Real-Time Data Analytics at Scale

SaaSHub - Software Alternatives and Reviews

Our great sponsors

Functional Java		protonpack
	Project
1	Mentions	-
3,538	Stars	478
-	Growth	-
0.0	Activity	0.0
7 months ago	Latest Commit	6 months ago
Java	Language	Java
Apache License 2.0	License	MIT License

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.

Functional Java

Posts with mentions or reviews of Functional Java. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-02-11.

What can I do with Java 1.4?
3 projects | /r/java | 11 Feb 2022

I made one (Before realizing it'd already been done) to backport newer language features to Java 8 and it was pretty easy to bundle it up as a maven plugin. But going back all the way to 4 will be a notable increase in difficulty. Retrolambda goes to 1.5 but not all the way to 4. You could hypothetically add a layer on top of it to support 1.5 -> 1.4. That or roll a fork of it.

protonpack

Posts with mentions or reviews of protonpack. We have used some of these posts to build our list of alternatives and similar projects.

We haven't tracked posts mentioning protonpack yet.
Tracking mentions began in Dec 2020.

What are some alternatives?

When comparing Functional Java and protonpack you can also consider the following projects:

Javaslang - vʌvr (formerly called Javaslang) is a non-commercial, non-profit object-functional library that runs with Java 8+. It aims to reduce the lines of code and increase code quality.

StreamEx - Enhancing Java Stream API

Fugue

underscore-java - java port of Underscore.js

jOOλ - jOOλ - The Missing Parts in Java 8 jOOλ improves the JDK libraries in areas where the Expert Group's focus was elsewhere. It adds tuple support, function support, and a lot of additional functionality around sequential Streams. The JDK 8's main efforts (default methods, lambdas, and the Stream API) were focused around maintaining backwards compatibility and implementing a functional API for parallelism.

cyclops-react - An advanced, but easy to use, platform for writing functional applications in Java 8.

λ - Functional patterns for Java

Faux Pas - A library that simplifies error handling for Functional Programming in Java