Uses of Class

Packages that use OptionalLong
HTTP Client and WebSocket APIs
Contains the collections framework, some internationalization support classes, a service loader, properties, random number generation, string parsing and scanning classes, base64 encoding and decoding, a bit array, and several miscellaneous utility classes.
Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.
Classes to support low-level and efficient foreign memory/function access, directly from Java.