GS Collections has been migrated to the Eclipse Foundation, re-branded as Eclipse Collections. https://www.eclipse.org/collections/
ExpandingCollection is a material design card peek/pop controller. Android UI Library made by @Ramotion
A Persistent Java Collections Library
A Complete Reference to Java Collections Framework through simple examples
Demonstrate overheads for various Java Collection implementations.
Generic, Null-safe, Immutable Collections and Functional Transformations for the JVM
Java implementation of the FSet functional collections library.
Manipulate collections easily using C# LINQ style queries and Java 8 closures.
Efficient Immutable/Persistent Collections for Java