gs-collections

Provides high-level iteration patterns like select, reject, and collect, reducing code duplication and improving readability, as demonstrated in the README with examples like Person.TO_LAST_NAME.

Offers performance and memory-optimized replacements for ArrayList, HashSet, and HashMap, beneficial for resource-sensitive applications, as highlighted in the key features.

Introduces useful types such as Bag, Multimap, and BiMap, expanding beyond standard JDK collections and enabling more complex data modeling.

Uniform API for iterating over Collections, Arrays, Maps, and Strings, simplifying code across different data structures and reducing boilerplate.

Actively developed since 2005 and used in production at Goldman Sachs, ensuring stability and reliability for enterprise applications.