#62 (Jul 3, 2020, 8:30:58 AM)

1. Make primitive*HashMap.keySet() serializable (details / githubweb)
2. Optimize implementations of aggregateBy in Bags to use forEachWithOccurrences.Closes #449 (details / githubweb)
3. Pull up implementations of aggregateBy() as default methods. (details / githubweb)
4. Remove duplicate methods in abstract Bag iterable classes that have been moved up as default methods. (details / githubweb)
5. Add default aggregateBy method to RichIterable that takes a target Map and remove some duplicate implementation code. (details / githubweb)

Started by user Nikhil Nanivadekar

• origin/master