1.eclipse-collections / eclipse-collectionsEclipse Collections is a collections framework for Java with optimized data structures and a rich, functional and fluent API.javaeclipse-collectionsjava-collectionscollectionsdata-structuresfunctional+3 moreJavaNo license2.7K total700 forks+53 starsfrom 2,611 · score 3.99
2.amaembo / streamexEnhancing Java Stream APIjavajava8collectionsstreams-apiJavaAPACHE-2.02.3K total260 forks+24 starsfrom 2,270 · score 3.22
3.bluuewhale / hash-smithFast & memory efficient hash tables for Javahashtablejavasimdrobinhood-hashingswiss-tablebenchmark+3 moreJavaMIT109 total10 forks+6 starsfrom 103 · score 1.95
4.AOL-archive / cyclopsAn advanced, but easy to use, platform for writing functional applications in Java 8.functional-programmingreactive-streamsmonoidstreamscollectionsdata-structures+7 moreJavaAPACHE-2.01.3K total134 forks+2 starsfrom 1,322 · score 1.10