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Note: This post is part of a series on D8 and R8, Android’s new dexer and optimizer, respectively. For an intro to D8 read “Android’s Java 8 support”. For an intro to R8 read “R8 Optimization: Staticization”. The last post in this series was the first to cover R8 and one of its optimizations. This post will cover an optimization which performs data flow analysis of nullability. Let’s dig in! A coalesce function returns the first non-null argument that is provided. Running the following example...