Top 5 Java Guava Projects

Guava

13 48,743 8.9 Java

Google core libraries for Java

Project mention: Lists: do you know the nature of yours? The strange story of a data container in Java | dev.to | 2023-11-23

The first problem is at the level of Type System, given that a situation more correct would allow us to distinguish through the Collection Type which abstraction we are operating with, species if definable as mutable or immutable. The JCF was born at a time when great care was taken to offer immediate operational data structures, and with attention to performance, but with less attention to constructs or uses that are now seen as common. These concepts have been taken up by other infrastructures from which we certainly cannot fail to mention: Eclipse Collection, Guava Collections, and VAVR.
Immutables

1 3,341 0.0 Java

Annotation processor to create immutable objects and builders. Feels like Guava's immutable collections but for regular value objects. JSON, Jackson, Gson, JAX-RS integrations included

Project mention: Unchecked Java: Say Goodbye to Checked Exceptions Forever | news.ycombinator.com | 2023-07-13

This is every Lombok lover's favorite strawman argument I've run into.
I've been coding in Java professionally for ~20 years. I can count with zero hands the number of times I've been burned by a getter or setter getting changed into something surprising.
If you really need auto-generated getters/setters/builders - Immutables [1] is a library that does it using bog standard annotation processing rules that don't require hacking your build process.
[1] https://github.com/immutables/immutables
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mycollab

1 1,208 0.0 Java

An open source, free, high performance, stable and secure Java Application Business Platform of Project Management and Document

Project mention: FOSS project management suite like Clickup/Asana/Monday | /r/foss | 2023-06-23

I haven't used either of these two suggestions, but with some quick searching, I found MyCollab or Fractale which look like they might be pretty good. MyCollab looks better of the two of those to me, but Fractale could surprise me.
Modernizer

0 344 0.0 Java

Detect uses of legacy Java APIs
JadConfig

0 22 0.0 Java

Annotation-driven configuration library for the Java programming language
InfluxDB

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NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2023-11-23.