1.apple / pklA configuration as code language with rich validation and tooling.pkljavakotlinconfigconfigurationdata+10 moreJavaAPACHE-2.012K total417 forks+307 starsfrom 11,248 · score 5.73
2.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