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Google core libraries for Java
Google Guava Libraries
source code for guava blog series
Probabilistic data structures for Guava.
Examples of Google Guava usage
AssertJ Guava is a library of assertions specific to Guava types like Multimap, Optional or Table
Various examples of usage Google Guava API.
The source code of Getting Started with Google Guava
Java 8 Stream API Collectors for Guava Immutable Collections